المؤلفون: Tekpınar L; Department of Health Economics, Nezahat Keleşoğlu Faculty of Health Sciences, Necmettin Erbakan University, Konya, Türkiye; Department of Health Management, Nezahat Keleşoğlu Faculty of Health Sciences, Necmettin Erbakan University, Konya, Türkiye. Electronic address: ltfyetkpnr@gmail.com., Yiğit V; Department of Hospital Management, Faculty of Economics and Administrative Sciences, Süleyman Demirel University, Isparta, Türkiye; Department of Health Management, Faculty of Economics and Administrative Sciences, Süleyman Demirel University, Isparta, Türkiye.

المصدر: Value in health regional issues [Value Health Reg Issues] 2024 Jul; Vol. 42, pp. 100979. Date of Electronic Publication: 2024 Feb 09.

نوع المنشور: Journal Article

بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 101592642 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2212-1102 (Electronic) Linking ISSN: 22121099 NLM ISO Abbreviation: Value Health Reg Issues Subsets: MEDLINE

مواضيع طبية MeSH: Cost-Benefit Analysis*/methods , Dental Prosthesis, Implant-Supported*/economics , Dental Prosthesis, Implant-Supported*/methods , Crowns*/economics, Humans ; Denture, Partial, Fixed/economics ; Quality-Adjusted Life Years ; Dental Implants, Single-Tooth/economics ; Cost-Effectiveness Analysis

مستخلص: Objectives: The most cost-effective option for replacing lost teeth is not evident because there is a dearth of evidence-based information on implant-supported single crowns versus tooth-supported fixed dental prostheses. This study conducted the analysis of cost-effectiveness of implant-supported single crown and tooth-supported fixed dental prostheses from a social perspective in Türkiye.
Methods: Costs were calculated in the analysis from a social perspective for 2021. Costs and quality-adjusted prosthesis year (QAPY) values were computed over a 20-year period in the study using the Markov model. The computed values were discounted by 5%. The results are presented as the incremental cost-effectiveness ratio. To assess the impact of uncertainty on cost-effectiveness analyses, a tornado diagram and Monte Carlo simulations were created.
Results: Throughout the 20-year time horizon, tooth-supported fixed dental prostheses cost $985.58 cumulatively, whereas implant-supported single crown cost $2161.64 (US $1 = 9.22 ₺ as of 15 October 2021). The calculated incremental cost-effectiveness ratio is 1.333 per QAPY. Compared with the implant-supported single crown tooth-supported fixed dental prostheses, it offers a QAPY of 0.882 over a 20-year period, while costing an additional $1176.06.
Conclusions: These results suggest that the implant-supported single crown provided higher QAPY value but was costlier. When the research's findings are compared with the literature, it becomes clear that Türkiye has lower dental care expenses than most other nations.
Competing Interests: Author Disclosures Author disclosure forms can be accessed below in the Supplemental Material section.
(Copyright © 2024 International Society for Health Economics and Outcomes Research. Published by Elsevier Inc. All rights reserved.)

المؤلفون: Kobayashi T; Department of Fixed Prosthodontics, Nihon University School of Dentistry., Honda J; Department of Fixed Prosthodontics, Nihon University School of Dentistry., Kubochi K; Department of Fixed Prosthodontics, Nihon University School of Dentistry., Iwasaki T; Department of Fixed Prosthodontics, Nihon University School of Dentistry., Watanabe Y; Department of Fixed Prosthodontics, Nihon University School of Dentistry., Komine F; Department of Fixed Prosthodontics, Nihon University School of Dentistry.

المصدر: Dental materials journal [Dent Mater J] 2024 Jun 01; Vol. 43 (3), pp. 359-366. Date of Electronic Publication: 2024 Apr 05.

نوع المنشور: Journal Article

بيانات الدورية: Publisher: Japanese Society for Dental Materials and Devices Country of Publication: Japan NLM ID: 8309299 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1881-1361 (Electronic) Linking ISSN: 02874547 NLM ISO Abbreviation: Dent Mater J Subsets: MEDLINE

مواضيع طبية MeSH: Zirconium*/chemistry , Materials Testing* , Crowns* , Dental Restoration Failure* , Dental Stress Analysis* , Dental Porcelain*/chemistry , Dental Prosthesis, Implant-Supported* , Dental Veneers*, Composite Resins/chemistry ; Surface Properties

مستخلص: This study investigated the fracture load of implant-supported zirconia crowns (IZCs), in which indirect composite resin or feldspathic porcelain was layered onto zirconia frameworks with mechanical retentive devices. Three different zirconia frameworks were assessed: attaching mechanical retentive devices on glaze and opaque porcelain materials (GL and OP groups, respectively), and no attaching mechanical retentive devices (ND group). The frameworks were layered using feldspathic porcelain (FP veneer) and indirect composite resin (IC veneer). Fracture load of the specimens was measured. In FP veneer, the GL group recorded the highest fracture load. In the IC veneer, the GL and OP groups had significantly higher fracture load than the ND group. The fracture resistance of IZCs can be enhanced by applying glaze material before attaching mechanical retentive devices for porcelain layering. The mechanical retentive devices effectively yielded mechanical interlocking between the zirconia frameworks and the IC veneer in GL and OP groups.

المؤلفون: Fang T; Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China., Gao J; Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China., Wu Q; Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China., Xie C; Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China., Zhang Y; Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China., Lu J; Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China., Yu H; Department of Prosthodontics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China.

المصدر: Journal of prosthodontics : official journal of the American College of Prosthodontists [J Prosthodont] 2024 Jun; Vol. 33 (5), pp. 506-511. Date of Electronic Publication: 2023 Sep 07.

نوع المنشور: Journal Article

بيانات الدورية: Publisher: Wiley-Blackwell Country of Publication: United States NLM ID: 9301275 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1532-849X (Electronic) Linking ISSN: 1059941X NLM ISO Abbreviation: J Prosthodont Subsets: MEDLINE

مواضيع طبية MeSH: Dental Prosthesis, Implant-Supported*, Humans ; Workflow ; Alveoloplasty/methods ; Computer-Aided Design ; Immediate Dental Implant Loading/methods ; Surgery, Computer-Assisted/methods

مستخلص: This article presents a technique for fabricating two-piece labial guides using resin and cobalt-chromium for guided alveoloplasty, implant placement, and immediate full-arch implant-supported fixed complete denture placement. This technique reduces tissue damage and overcomes the negative effect of the anatomical position of the palatal neuropore and mobility of the tissue flap on the positioning and stability of the guide. The use of labial retention metal guides with improved mechanical properties of cobalt-chromium and fixation plugs allows the unilateral placement of the guide. Thus, minimally invasive implant surgery can be performed owing to the absence of large palatal flap elevation and obstruction. Such a design provides better stability of the guides and clear visual access during surgery.
(© 2023 by the American College of Prosthodontists.)

المؤلفون: Afrashtehfar KI; Evidence Based Practice Unit, College of Dentistry, Ajman University, Ajman City, UAE. patrick.schmidlin@zzm.uzh.ch.; Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Berne, Switzerland.; Division of Periodontal and Periimplantitis Sciences, Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.; Private Practice Limited to Implant Dentistry, Richmond, Canada.; Private Practice Limited to Prosthodontics, Abu Dhabi, UAE., Stawarczyk B; Department of Prosthodontics, Ludwig-Maximilians-University, Munich, Germany. patrick.schmidlin@zzm.uzh.ch., Micovic Soldatovic D; Department of Prosthodontics, Ludwig-Maximilians-University, Munich, Germany. patrick.schmidlin@zzm.uzh.ch., Schmidlin PR; Division of Periodontal and Periimplantitis Sciences, Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland. patrick.schmidlin@zzm.uzh.ch.

المصدر: Swiss dental journal [Swiss Dent J] 2024 May 10; Vol. 134 (3), pp. 1-17. Date of Electronic Publication: 2024 May 10.

نوع المنشور: Journal Article; Case Reports

بيانات الدورية: Publisher: Schweizerische Zahnärzte-Gesellschaft Country of Publication: Switzerland NLM ID: 101624119 Publication Model: Electronic Cited Medium: Print ISSN: 2296-6498 (Print) Linking ISSN: 22966498 NLM ISO Abbreviation: Swiss Dent J Subsets: MEDLINE

مواضيع طبية MeSH: Dental Prosthesis, Implant-Supported*/methods, Humans ; Proof of Concept Study ; Denture, Partial, Fixed ; Denture Design ; Female

مستخلص: The concept of bilateral cantilevers on a single central implant (T-design) for three-unit implant-supported fixed dental prostheses (ISFDPs) has not been explored nor tested. This technical hypothesis aimed to explore the feasibility of such an approach as a cost-effective alternative to conventional treatments. Careful considerations regarding implant diameter, length, ideal position, occlusal scheme, and bone remodeling are essential to ensure adequate support, stability, and prevention of complications. In this proof of concept, we present a preliminary case with this novel design to replace missing posterior teeth in a patient with narrow bone conditions. In addition, a series of planned investigations and preliminary results, including preclinical studies, are presented to illustrate our concept and its potential clinical implications. Clinically, after two-year follow-up, healthy and stable peri-implant tissues around the ISFDP exemplarily demonstrated excellent stability, functionality, and comfort, which is supported by acceptable fracture resistance data in vitro, suggesting indeed the practical potential and suitability. Thus, we claim that such a treatment modality has the at least theoretical potential to revolutionize implant dentistry by providing innovative and cost-effective treatment options for patients with partial ISFDPs in very specific cases. Of course, further research and evaluations are necessary to validate the clinical implications of this innovative hypothesis. Implementing the 3-on-1 T-bridge approach in partial ISFDPs could offer a promising alternative to traditional methods. If proven successful, this technique may lead to significant advancements in clinical practice, providing a less invasive cost-effective treatment option.
(Copyright 2024 SWISS DENTAL JOURNAL SSO – Science and Clinical Topics. License: This work is licensed under a Creative Commons Attribution 4.0 International License.)

المؤلفون: Alkaya B; Department of Periodontology Faculty of Dentistry, Cukurova University, Adana, Turkey. balkaya@cu.edu.tr., Yüksel HD; Department of Oral Diagnosis and Maxillofacial Radiology, Faculty of Dentistry, Cukurova University, Adana, Turkey., Evlice B; Department of Oral Diagnosis and Maxillofacial Radiology, Faculty of Dentistry, Cukurova University, Adana, Turkey., Özcan M; Department of Periodontology Faculty of Dentistry, Cukurova University, Adana, Turkey., Türer OU; Department of Periodontology Faculty of Dentistry, Cukurova University, Adana, Turkey., İşler SÇ; Department of Periodontology, School of Dental Medicine, Bern University, Bern, Switzerland.; Department of Periodontology, Faculty of Dentistry, Gazi University, Ankara, Turkey., Haytaç MC; Department of Periodontology Faculty of Dentistry, Cukurova University, Adana, Turkey.

المصدر: Clinical oral investigations [Clin Oral Investig] 2024 May 09; Vol. 28 (5), pp. 288. Date of Electronic Publication: 2024 May 09.

نوع المنشور: Journal Article; Controlled Clinical Trial

بيانات الدورية: Publisher: Springer-Verlag Country of Publication: Germany NLM ID: 9707115 Publication Model: Electronic Cited Medium: Internet ISSN: 1436-3771 (Electronic) Linking ISSN: 14326981 NLM ISO Abbreviation: Clin Oral Investig Subsets: MEDLINE

مواضيع طبية MeSH: Dental Prosthesis, Implant-Supported* , Masseter Muscle*/diagnostic imaging , Temporal Muscle*/diagnostic imaging , Ultrasonography* , Mouth, Edentulous*/rehabilitation , Mouth, Edentulous*/diagnostic imaging, Humans ; Male ; Female ; Prospective Studies ; Middle Aged ; Aged ; Treatment Outcome

مستخلص: Objectives: Total tooth loss is common in the aging population resulting in insufficient chewing function with subsequent weakening of the masticatory muscles. The study aims to evaluate the changes in thicknesses of the masseter and anterior temporal muscle in edentulous patients following the reconstruction of implant-supported fixed prostheses and compare them with the dentate individuals.
Materials and Methods: The study was designed as a prospective, single-center, controlled clinical trial. A total of 60 participants were included in the present study. The patients were divided into two groups; Group I (Test Group): 30 edentulous patients who received implant-supported fixed prostheses, Group II (Control Group): 30 dentate individuals of an age and sex-matched group. Ultrasonography was used to measure the cross-sectional thickness of the left and right musculus masseter and anterior temporalis immediately after the cementation of the prosthetic rehabilitation (T1), on the 1st (T2) and 6th (T3) months after rehabilitation and at a single time point in the control group.
Results: The results showed that there were significant comparison differences in muscle thickness at the baseline measurements between groups while at the end of the 6th month, these differences were not significant. The muscle thicknesses of both the masseter and anterior temporalis muscles increased significantly at T2 and T3 compared to T1 in the test group. The asymmetry index between the left and right muscles in the test group and the asymmetry differences between groups also decreased significantly at the end of the 6th month.
Conclusion: The implant-supported fixed prostheses significantly increase the thicknesses of the masseter and anterior temporal muscle together with a decrease in the asymmetry between the left and right muscles. At six months, implant-treated patients showed similar muscle thicknesses compared to dentate individuals.
Clinical Relevance: The findings suggest that implant-supported fixed prostheses can improve the masticatory function and facial symmetry of edentulous patients.
(© 2024. The Author(s).)

المؤلفون: Manfredini M; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy.; Implant Center for Edentulism and Jawbone Atrophies, Maxillo-Facial Surgery and Dental Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda 10, 20122, Milan, Italy., Pellegrini M; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy. matteo.pellegrini@unimi.it.; Implant Center for Edentulism and Jawbone Atrophies, Maxillo-Facial Surgery and Dental Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda 10, 20122, Milan, Italy. matteo.pellegrini@unimi.it., Rigoni M; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy., Veronesi V; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy., Beretta M; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy.; Implant Center for Edentulism and Jawbone Atrophies, Maxillo-Facial Surgery and Dental Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda 10, 20122, Milan, Italy., Maiorana C; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy.; Implant Center for Edentulism and Jawbone Atrophies, Maxillo-Facial Surgery and Dental Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda 10, 20122, Milan, Italy., Poli PP; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda 10, 20122, Milan, Italy.; Implant Center for Edentulism and Jawbone Atrophies, Maxillo-Facial Surgery and Dental Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Commenda 10, 20122, Milan, Italy.

المصدر: BMC oral health [BMC Oral Health] 2024 May 04; Vol. 24 (1), pp. 531. Date of Electronic Publication: 2024 May 04.

نوع المنشور: Journal Article; Observational Study

بيانات الدورية: Publisher: BioMed Central Country of Publication: England NLM ID: 101088684 Publication Model: Electronic Cited Medium: Internet ISSN: 1472-6831 (Electronic) Linking ISSN: 14726831 NLM ISO Abbreviation: BMC Oral Health Subsets: MEDLINE

مواضيع طبية MeSH: Quality of Life* , Oral Health* , Dental Prosthesis, Implant-Supported*/psychology , Esthetics, Dental*, Humans ; Male ; Female ; Prospective Studies ; Middle Aged ; Aged ; Longitudinal Studies

مستخلص: Background: Oral Health-Related Quality of Life (OHRQoL) is a comprehensive concept covering daily comfort, self-esteem, and satisfaction with oral health, including functional, psychological, and social aspects, as well as pain experiences. Despite abundant research on OHRQoL related to oral diseases and hygiene, there is limited data on how patients perceive changes after implant-prosthetic rehabilitation. This study aimed to evaluate OHRQoL and aesthetic perception using OHIP-14 and VAS scales respectively, before (baseline-TB), during (provisional prostheses-TP), and after (definitive prostheses-TD) implant-prosthetic rehabilitation. It also explored the impact of biological sex, substitution numbers, and aesthetic interventions on OHRQoL and VAS scores, along with changes in OHIP-14 domains.
Methods: A longitudinal prospective single-center observational cohort study was conducted with patients requiring implant-prosthetic rehabilitation. Quality of life relating to dental implants was assessed through the Italian version of Oral Health Impact Profile-14 (IOHIP-14), which has a summary score from 14 to 70. Patients' perceived aesthetic was analyzed through a VAS scale from 0 to 100. Generalized Linear Mixed Effect Models, Linear Mixed Effect Models, and Friedman test analyzed patient responses.
Results: 99 patients (35 males, 64 females) aged 61-74, receiving various prosthetic interventions, were enrolled. Both provisional and definitive prosthetic interventions significantly decreased the odds of a worse quality of life compared to baseline, with odds ratios of 0.04 and 0.01 respectively. VAS scores increased significantly after both interventions, with estimated increases of 30.44 and 51.97 points respectively. Patient-level variability was notable, with an Intraclass Correlation Coefficient (ICC) of 0.43. While biological sex, substitution numbers, and aesthetic interventions didn't significantly affect VAS scores, OHRQoL domains showed significant changes post-intervention.
Conclusions: These findings support the effectiveness of implant-prosthetic interventions in improving the quality of life and perceived aesthetics of patients undergoing oral rehabilitation. They have important implications for clinical practice, highlighting the importance of individualized treatment approaches to optimize patient outcomes and satisfaction in oral health care.
(© 2024. The Author(s).)

المؤلفون: Zamora GP; Universidad de Murcia, Murcia, Spain., Molina-González JM; Universidad de Murcia, Murcia, Spain., Martínez-Marco JF; Universidad de Murcia, Murcia, Spain., Ruiz AJO; Universidad de Murcia, Murcia, Spain., Mardas N; QMUL, Barts & The London School of Dentistry, London, United Kingdom., Garcia-Sanchez R; Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom; King's College London, London, United Kingdom. Electronic address: ruben.garciasanchez@gstt.nhs.uk.

المصدر: Journal of dentistry [J Dent] 2024 Jul; Vol. 146, pp. 105067. Date of Electronic Publication: 2024 May 17.

نوع المنشور: Journal Article; Randomized Controlled Trial; Comparative Study

بيانات الدورية: Publisher: Elsevier Country of Publication: England NLM ID: 0354422 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-176X (Electronic) Linking ISSN: 03005712 NLM ISO Abbreviation: J Dent Subsets: MEDLINE

مواضيع طبية MeSH: Esthetics, Dental* , Dental Implants, Single-Tooth* , Zirconium*/chemistry , Dental Porcelain*/chemistry , Crowns* , Dental Prosthesis, Implant-Supported* , Immediate Dental Implant Loading*, Humans ; Female ; Male ; Adult ; Middle Aged ; Treatment Outcome ; Patient Satisfaction ; Dental Materials/chemistry ; Maxilla/surgery ; Metal Ceramic Alloys/chemistry ; Dental Prosthesis Design ; Young Adult

مستخلص: Objectives: The aim of this study is to compare the aesthetic outcomes of metal porcelain (C), lithium disilicate (T1) and porcelain-layered zirconium (T2) immediate implant-supported single crowns in the anterior maxilla.
Materials and Methods: Forty-five immediate dental implants were provided for 45 patients that required the extraction of a single tooth in the anterior maxilla. A temporary prosthesis was provided at 8 weeks after placement followed by the final prosthesis at 24 weeks post-implantation. The patients were randomly allocated into 3 groups: 15 patients in the control group (C) received a metal-porcelain restoration, 15 patients (T1) received a lithium disilicate (LD) restoration and 15 patients (T2) received a porcelain-layered, zirconium (Z) restoration. Pink (PES) and White (WES) esthetic scores, radiographic bone levels, periodontal parameters and patient's esthetic satisfaction using a visual analogue scale (VAS) were evaluated at the time of final restoration placement (t0) and at 12-months post-loading (t12).
Results: No implants were lost during the duration of this study. Statistically significant higher WES and VAS scores (p < 0.05) were recorded in T1 vs C and T1 vs T2 groups respectively. Similar radiographic bone levels and periodontal parameters were recorded in all groups.
Conclusion: Within the limitations of this study, it was concluded that T1 restorations provided better WES outcomes when compared to C restorations and better VAS scores when compared to T2 restorations at 12 months post-loading. Besides, different material interphases did not have an impact in PES, bone levels or periodontal parameters.
Clinical Relevance: There is limited data comparing aesthetic outcomes of implant supported single crowns made of different ceramic materials based on accepted and comparable indexes and the evaluation of the patient's perspective regarding these aesthetic outcomes.
Competing Interests: Declaration of competing interest The authors do not report any conflict of interest related to the present study.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)

المؤلفون: Mao Z; Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany. Electronic address: zhen.mao@charite.de., Bleiel H; Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany., Beuer F; Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany., Böse MWH; Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany., Soetebeer M; Department of Prosthodontics, Geriatric Dentistry and Craniomandibular Disorders, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany.

المصدر: Journal of dentistry [J Dent] 2024 Jul; Vol. 146, pp. 105000. Date of Electronic Publication: 2024 May 10.

نوع المنشور: Journal Article; Systematic Review; Meta-Analysis; Review

بيانات الدورية: Publisher: Elsevier Country of Publication: England NLM ID: 0354422 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-176X (Electronic) Linking ISSN: 03005712 NLM ISO Abbreviation: J Dent Subsets: MEDLINE

مواضيع طبية MeSH: Crowns* , Bite Force* , Dental Prosthesis, Implant-Supported*, Humans ; Dental Implants, Single-Tooth ; Follow-Up Studies ; Dental Occlusion

مستخلص: Objective: This systematic review evaluated the occlusal changes after loading with implant-supported single crowns.
Sources: An electronic literature search was conducted in PubMed, Embase and Cochrane library for randomized (RCTs) or non-randomized controlled clinical trials (CCTs), with a minimum of 10 patients.
Study Selection: Studies reporting the occlusal force changes on implant-supported single crowns - with natural teeth as antagonist - measured at baseline and after loading periods were included. 4 CCTs including 133 ISCs in posterior sites were included for meta-analysis. All analyzed ISCs had no contact at a light bite and a light contact at a heavy bite in MIP at loading (baseline).
Data: The relative occlusal forces (ROFs) of each implant-supported single crown (ISC) or control tooth (CT) were extracted. ROFs were defined as percentage of the total occlusal force of the entire dentition at maximum intercuspal position (MIP). A meta-analysis was conducted to compare the ROF changes at different follow-up periods and the weighted mean differences in ROF between ISCs and CTs were pooled and analyzed. The amount of change in ROF was significantly lower in 6 to 12 months after loading comparing the follow-up period between baseline and 6 month (p < 0.05). At baseline and 3-month follow-up, CTs presented significant higher ROF than ISCs (p < 0.05), while no significant difference was found after half year following.
Conclusions: This study showed that the ROF changes significantly over time after loading of ISCs. It might prove that the occlusal concept defined at the time of prosthetic delivery changes or adapts naturally over time.
Clinical Significance: The function of specific implant occlusal concept (no contact at a light bite and a light contact at a heavy bite in MIP) is limited over time and careful monitoring and occlusal adjustments should be recommendable during the first-year follow-up.
Competing Interests: Declaration of competing interest The authors declare no conflict of interest.
(Copyright © 2024. Published by Elsevier Ltd.)

المؤلفون: Pereira ALC, Tôrres CSP, Campos MFTP, de Melo LA, Dantas EM, Barbosa GAS, Carreiro ADFP

المصدر: The International journal of prosthodontics [Int J Prosthodont] 2024 Jun 21 (3), pp. 271-281.

نوع المنشور: Journal Article; Comparative Study

بيانات الدورية: Publisher: Quintessence Pub. Co Country of Publication: United States NLM ID: 8900938 Publication Model: Print Cited Medium: Internet ISSN: 1942-4426 (Electronic) Linking ISSN: 08932174 NLM ISO Abbreviation: Int J Prosthodont Subsets: MEDLINE

مواضيع طبية MeSH: Dental Prosthesis, Implant-Supported* , Alveolar Bone Loss*/diagnostic imaging , Alveolar Bone Loss*/etiology , Mandible*/surgery, Humans ; Middle Aged ; Male ; Female ; Aged ; Dental Implants ; Adult

مستخلص: Purpose: To compare the peri-implant bone loss of mandibular complete-arch implant-supported fixed prostheses (FPSs) supported by three and four implants and to correlate with the size of the horizontal and vertical distal cantilever at prosthesis placement (T1) and after 1 year (T2).
Materials and Methods: A total of 72 external hexagon (EH) type implants were placed in 20 participants. Of these, 24 supported an FPS with three implants (G3I) and 48 with four implants (G4I). The mandibular implants were named 1, 2, 3, and 4 according to their location in the arch, in a clockwise direction. Digital periapical radiographs were taken at times T1 and T2 for analysis and measurement of peri-implant bone loss. The horizontal and vertical distal cantilevers were measured with a digital caliper and correlated with peri-implant bone loss.
Results: The survival rate of implants in G3I was 91.66%, and in G4I it was 97.91%. The mean bone loss in G3I was 0.88 ± 0.89 mm, and in G4I it was 0.58 ± 0.78 mm (P = .225). There was no correlation between distal horizontal cantilevers and bone loss in the studied groups, with G3I being -0.25 (P = .197) and G4I -0.22 (P = .129). Larger vertical cantilevers of implants 1 (P = .018), 3 (P =.015), and 4 (P = .045) correlated with greater bone loss in G4I.
Conclusions: The number of implants in an FPS did not influence peri-implant bone loss after 1 year of follow-up. Larger vertical cantilevers influenced greater bone loss in complete-arch implant-supported fixed prostheses supported by four implants.

المؤلفون: Ermatinger S, Lee WZ, Thoma DS, Hüsler J, Hämmerle CHF, Naenni N

المصدر: The International journal of prosthodontics [Int J Prosthodont] 2024 Jun 21 (3), pp. 261-270.

نوع المنشور: Journal Article

بيانات الدورية: Publisher: Quintessence Pub. Co Country of Publication: United States NLM ID: 8900938 Publication Model: Print Cited Medium: Internet ISSN: 1942-4426 (Electronic) Linking ISSN: 08932174 NLM ISO Abbreviation: Int J Prosthodont Subsets: MEDLINE

مواضيع طبية MeSH: Dental Prosthesis, Implant-Supported*, Humans ; Middle Aged ; Male ; Female ; Treatment Outcome ; Adult ; Dental Restoration Failure ; Universities ; Aged ; Education, Dental ; Patient Satisfaction ; Crowns

مستخلص: Purpose: To assess the clinical concept of patient treatment with fixed tooth- and implant-supported restorations in a university-based undergraduate program after 13 to 15 years.
Materials and Methods: In total, 30 patients (mean age 56 years) who had received multiple tooth- and implant-supported restorations were recalled after 13 to 15 years. The clinical assessment comprised biologic and technical parameters as well as patient satisfaction. Data were analyzed descriptively, and the 13- to 15-year survival rates for tooth- and implant-supported single crowns and fixed dental prostheses (FDPs) were calculated.
Results: The survival rate of tooth-supported restorations amounted to 88.3% (single crowns) and 69.6% (FDPs); in implants, it reached 100% for all types of restorations. Overall, 92.4% of all restorations were free of technical complications. The most common technical complication was chipping of the veneering ceramic (tooth-supported restorations: 5.5%; implant-supported restorations: 13% to 15.9%) regardless of the material used. For tooth-supported restorations, increased probing depth ≥ 5 mm was the most frequent biologic complication (22.8%), followed by endodontic complications of root canal-treated teeth (14%) and loss of vitality at abutment teeth (8.2%). Peri-implantitis was diagnosed in 10.2% of implants.
Conclusions: The results of this study indicate that the clinical concept implemented in the undergraduate program and performed by undergraduate students works well. The clinical outcomes are similar to those reported in the literature. In general, the majority of biologic complications occur in reconstructed teeth, whereas implant-supported restorations are more prone to technical complications.