The International journal of prosthodontics最新文献_第7页

Frequency of Locator Legacy Insert Changes with Implant Overdentures in a UK Population. 英国人口中种植体覆盖义齿的定位器遗留嵌入件变化频率。

The International journal of prosthodontics Pub Date : 2025-03-20 DOI: 10.11607/ijp.8778

Jack McSweeney, David W Bartlett, Sachin Varma

{"title":"Frequency of Locator Legacy Insert Changes with Implant Overdentures in a UK Population.","authors":"Jack McSweeney, David W Bartlett, Sachin Varma","doi":"10.11607/ijp.8778","DOIUrl":"10.11607/ijp.8778","url":null,"abstract":"Purpose: To determine the frequency of insert changes for combined maxillary and mandibular implant overdentures (IODs) using the Locator Legacy system and to assess the survival of dental implants with IODs.Materials and methods: This retrospective audit reviewed clinical records with up to 12 years of follow-up from 785 patients who received IODs using the Locator system at a dental hospital. In total, 151 had a combined maxillary IOD opposed by a mandibular IOD and of those, 37 had data retrieved using a minimum data set. The frequency of insert change was recorded and descriptive analysis was provided by means and SDs for continuous variables. Frequencies of categorical values were reported as percentages.Results: In total, 222 implants were placed in 21 men and 16 women with a mean age of 67.5 years (SD 8.8). All patients were reviewed at least once. Maxillary and mandibular IODs experienced 1.9 (SD 2.0) and 1.2 (SD 1.2) mean insert changes per patient, respectively. The mean time (SD) between initial and first insert change for maxillary and mandibular IODs was 3.4 months (SD 3.2) and 6.4 months (SD 7.2) and between the first and second insert change was 9.9 months (SD 9.0) and 10.0 months (SD 8.3), respectively. Implant failure was 21.6% and 2.7% in the maxilla and mandible, respectively.Conclusions: Clinicians should anticipate the first insert change around 3 months for maxillary IODs and 6 months for mandibular IODs. Subsequently, the second insert change should be expected around 10 months for both maxillary and mandibular IODs.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"191-195"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140103067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Postoperative Rehabilitation with a CAD/CAM- Fabricated Occlusal Splint Following Plate Reconstruction After Hemimandibulectomy and Condylectomy: A Case Report. 半月板和髁状突切除术后使用 CAD/CAM 制造的咬合夹板进行术后康复：病例报告。

The International journal of prosthodontics Pub Date : 2025-03-20 DOI: 10.11607/ijp.8904

Ryo Tagaino, Naoko Sato, Nobuhiro Yoda, Shigeto Koyama, Hiroshi Egusa

引用次数: 0

Influence of Different Torques on the Size of the Microgap and Bacterial Leakage in Three Commercial Implant Systems: An In Vitro Study. 不同扭矩对不同种植体系统微间隙大小和细菌渗漏的影响：体外研究

The International journal of prosthodontics Pub Date : 2025-03-20 DOI: 10.11607/ijp.8903

Hasna Alshubrmi, Mohammed A Mousa, Ibrahim A Taher, Mohammed Ghazi Sghaireen, Kiran Kumar Ganji, Rakhi Issrani, Bader K Alzarea

{"title":"Influence of Different Torques on the Size of the Microgap and Bacterial Leakage in Three Commercial Implant Systems: An In Vitro Study.","authors":"Hasna Alshubrmi, Mohammed A Mousa, Ibrahim A Taher, Mohammed Ghazi Sghaireen, Kiran Kumar Ganji, Rakhi Issrani, Bader K Alzarea","doi":"10.11607/ijp.8903","DOIUrl":"10.11607/ijp.8903","url":null,"abstract":"Purpose: To evaluate the adherence of three types of bacteria (Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa) and the size of the microgap of three different implant systems (JD Icon Plus [JD], ORA system [Ora; Dental Tech], and Ankylos [Dentsply Sirona]) under four different screw torque values.Materials and methods: A total of 10 samples for each tested implant system were used under different torques to determine the width of the gaps. The abutments were connected to the fixtures using a universal digital wrench, and an initial torque value of 10 Ncm was applied for all samples. After the assessment of the microgap, the fixture was repositioned into the bench vise, and the torque was increased to 20, 30, and 40 Ncm. The microgap assessment was done using a scanning electron microscope (SEM). Before the torque was increased to 40 Ncm, 11 samples for each tested implant system were used under 30 Ncm torque to determine the leakage in the tested implants for S. aureus, E. coli, and P. aeruginosa. Data were analyzed with multiple one-way ANOVA, Post hoc, and chi-square tests.Results: The Ankylos system showed the widest gap under all torques (P < .005), and the JD system demonstrated the lowest gap (P < .005). Regarding the bacterial leakage, JD showed the highest adherence to the bacteria, and the adherence was mainly to P. aeruginosa, while the Ankylos system showed the lowest adherence (P < .005).Conclusions: Within limits, the higher torque provides a higher fit to the implant-abutment interface (IAI), offering more stability. Ankylos implants showed the widest gap, while JD showed the narrowest. Regarding the bacterial leakage, JD showed the highest adherence to P. aeruginosa, while the ORA system showed the highest adherence to E. coli.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"196-205"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140295768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

To Preserve or Extract? A Scoping Review and a Prognostic Decision Tool Using Multispecialty Indicators. 保存还是提取？使用多专科指标的范围综述和预后决策工具。

The International journal of prosthodontics Pub Date : 2025-03-20 DOI: 10.11607/ijp.9068

Reem Al Shaltoni, Batool Alsulaimani, Sunporn Namano, Reem Alsaleh, Luis Del Castillo, Hiroshi Hirayama, Konstantinos Michalakis

{"title":"To Preserve or Extract? A Scoping Review and a Prognostic Decision Tool Using Multispecialty Indicators.","authors":"Reem Al Shaltoni, Batool Alsulaimani, Sunporn Namano, Reem Alsaleh, Luis Del Castillo, Hiroshi Hirayama, Konstantinos Michalakis","doi":"10.11607/ijp.9068","DOIUrl":"10.11607/ijp.9068","url":null,"abstract":"Because implant-supported restorations have become very popular, there is a tendency to extract teeth and replace them with implants. However, the first goal of dentistry should always be the preservation of natural teeth, given the prerequisite that these can be maintained with the application of appropriate treatment modalities. Therefore, individual tooth risk assessment and prognosis are very important for the treatment planning process. Four important factors influencing the dentist's decision on whether to save or extract a compromised tooth have been identified, and an extensive search of the related English language literature has been performed. Additionally, a hand search in related journals was implemented, and classic textbooks were consulted. Identified articles on patient-related, periodontal, endodontic, and restorative factors were thoroughly analyzed, focusing on diagnosis and tooth prognosis. A total of 52 references were carefully selected and reviewed. Available information was used to develop a color-coded prognostic decision chart with four different factors and up to 14 crucial parameters. All factors and parameters were analyzed in an effort to help the restorative dentist make a prognostic decision. The proposed color-coded prognostic decision chart can be helpful when a treatment plan is made and predictable restorative care is planned. This comprehensive prognostic decision chart can aid dentists in providing clinical care of high quality and in establishing a consensus on available restorative options. It can additionally help to establish appropriate communication with patients and third-party individuals in the restorative care process, effectively manage risk factors, and provide a framework for quality assessment in restorative treatment.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"235-246"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141289087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Occlusal Veneers and Load-Bearing Capacity of a Restored Tooth. 咬合贴面和修复后牙齿的承重能力。

The International journal of prosthodontics Pub Date : 2025-03-20 DOI: 10.11607/ijp.8906

Topias Yli-Urpo, Lippo Lassila, Timo Närhi, Pekka Vallittu

{"title":"Occlusal Veneers and Load-Bearing Capacity of a Restored Tooth.","authors":"Topias Yli-Urpo, Lippo Lassila, Timo Närhi, Pekka Vallittu","doi":"10.11607/ijp.8906","DOIUrl":"10.11607/ijp.8906","url":null,"abstract":"Purpose: To evaluate the influence of restoration bonding and preparation type on the load bearing capacity of a tooth restored with an indirect glass-ceramic or hybrid-ceramic occlusal veneer restoration.Materials and methods: Occlusal surfaces of extracted human molar teeth were prepared for indirect occlusal veneers with or without circumferential chamfer. The occlusal veneers were milled either from CAD/CAM hybrid- ceramic (HC; Cerasmart, GC Dental), or lithium-disilicate glass-ceramic (LDGC; IPS e.max CAD, Ivoclar) blocks. Finalized veneers were bonded to teeth following manufacturers' instructions or according to the technique for the intended deteriorated bonding using n-hexane wax solution preconditioning on restorations (n = 8/group). The ultimate fracture load was recorded, and fracture types were analyzed and classified visually. Statistical analysis was performed using one-way ANOVA.Results: The highest fracture load was recorded in teeth with bonded LDGC veneer (P ≤ .0007). The bonded HC veneers had only a marginally higher fracture load compared to nonbonded veneers. In all groups with deteriorated bonding, veneers loosened without tooth fracture, whereas in the bonded veneer groups tooth fractures were observed, especially in teeth restored with LDGC material.Conclusions: Bonded LDGC occlusal veneers have high load-bearing capacity that exceeds the fracture resistance of tooth structure. Circumferential chamfer preparation for an occlusal veneer has no influence on fracture load of a restored tooth.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"206-213"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140112561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Feasibility of Immediate Implant Placement in Maxillary First Premolars: Prediction of Implant Locations Using Restorations-A Radiographic Study. 上颌第一前磨牙即刻种植的可行性：使用修复体预测种植体位置--一项放射学研究。

The International journal of prosthodontics Pub Date : 2025-03-20 DOI: 10.11607/ijp.8757

Mohit Kheur, Shifa Kalsekar, Supriya Kheur, Ronald E Jung, Tabrez Lakha

{"title":"Feasibility of Immediate Implant Placement in Maxillary First Premolars: Prediction of Implant Locations Using Restorations-A Radiographic Study.","authors":"Mohit Kheur, Shifa Kalsekar, Supriya Kheur, Ronald E Jung, Tabrez Lakha","doi":"10.11607/ijp.8757","DOIUrl":"10.11607/ijp.8757","url":null,"abstract":"Purpose: To evaluate the suitability of maxillary premolars for immediate implant placement (IIP). Based on prosthetically driven treatment planning, a simple classification system was developed.Materials and methods: In total, 150 CBCTs of maxillary first premolars were analyzed in BlueskyBio software. The topographic position of the tooth was determined by analyzing the dimensions of the buccal and lingual cortical plates, the distance between the buccolingual plates, and the residual bone height from the root apex to the floor of the sinus. Virtual placement of an implant was carried out such that the implant would be positioned 1 mm apical to the buccal bone crest, would engage 3 mm of bone apical to the root apex, and would have a trajectory so that the abutment access was from the central fossa. Four categories were identified, and the classification was proposed.Results: It was observed that 74% of cases had buccal bone < 1 mm and 26% had buccal bone > 1 mm. It was also observed that 79% cases had an average distance > 3 mm between the root apex and maxillary sinus (with 21% of cases < 3 mm). The categorizations of implant placement were as follows: Type 1 (24%), Type 2 (56.6%), Type 3 (43.3%), and Type 4 (0%).Conclusions: In the majority of maxillary first premolars, IIP is possible with the implants to be placed in the palatal sockets or the furcation area. In cases where the buccal plate thickness is inadequate, simultaneous grafting should be considered between the implant and buccal plate.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"185-190"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140103066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on the Effectiveness of Digital Scanning Combined with Reverse Engineering Technology in Demonstrating Full-Crown Tooth Preparation. 数字扫描结合逆向工程技术在演示全冠牙制备中的有效性研究

The International journal of prosthodontics Pub Date : 2025-03-20 DOI: 10.11607/ijp.8968

Chuang Li, Bo Zou, Weini Xin, Xiaomin Zhao

{"title":"Investigation on the Effectiveness of Digital Scanning Combined with Reverse Engineering Technology in Demonstrating Full-Crown Tooth Preparation.","authors":"Chuang Li, Bo Zou, Weini Xin, Xiaomin Zhao","doi":"10.11607/ijp.8968","DOIUrl":"10.11607/ijp.8968","url":null,"abstract":"Purpose: To investigate the effect of digital scanning combined with reverse engineering technology in the demonstration of full-crown tooth preparation.Materials and methods: A total of 31 students were randomly divided into two groups. The students in the control group conducted traditional demonstration using eye-measurement methods. The students in the experimental group carried out improved demonstration using digital intraoral scans with 3D-measurement data. The students in both groups were provided with two resin teeth to conduct full-crown tooth preparation on head model dental simulators. The teeth prepared before and after demonstration were scored according to Chinese Stomatological Association Group Standards with a total score of 100 points. Analysis of covariance (ANCOVA) was performed to comparatively analyze the scores related to the tooth surfaces and the convergence angle between the two groups.Results: Analysis of two prepared teeth (a maxillary right central incisor and first molar) in two groups showed that there was a statistically significant difference in the mean score between the control group and experimental group (central incisor, P = .0039; first molar, P = .0120). The demonstration of the first molar showed that there were statistically significant differences in the scores related to the buccolingual surface (P = .0205) and proximal surface (P = .0023) between the control group and experimental group. There was a statistically significant difference in the score related to the convergence angle of the buccolingual surface between the control group and experimental group (P = .0265).Conclusions: The digital method can effectively improve the quality of tooth preparations and has a pedagogic advantage for posterior teeth, which present greater operational challenges.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"257-263"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141289068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pre-Prosthetic Intrusion of Maxillary Molars by Clear Aligners: A Case Report. 修复前上颌磨牙植入透明矫正器1例报告。

The International journal of prosthodontics Pub Date : 2025-02-24 DOI: 10.11607/ijp.9237

Feng Guo, Chenxu Wang, Wei Cheng, Lang Lei

引用次数: 0

Fracture Resistance of 3D Printed Restorations in Different Thicknesses for Primary Molars. 不同厚度的3D打印磨牙修复体抗断裂性能研究

The International journal of prosthodontics Pub Date : 2025-02-24 DOI: 10.11607/ijp.9234

Nilge Sarimehmetoglu, Huseyin Simsek

{"title":"Fracture Resistance of 3D Printed Restorations in Different Thicknesses for Primary Molars.","authors":"Nilge Sarimehmetoglu, Huseyin Simsek","doi":"10.11607/ijp.9234","DOIUrl":"https://doi.org/10.11607/ijp.9234","url":null,"abstract":"Purpose: The aim of this study was to evaluate the fracture resistance of primary tooth crowns fabricated at different thicknesses using two different 3D printing technologies: stereolithography (SLA) and digital light processing (DLP).Materials and methods: A typodont primary second molar tooth was scanned. Using the scanned model, three dies and crowns with thicknesses of 0.5 mm, 1.0 mm and 1.5 mm were created digitally. A total of 60 dies were fabricated from Crom-Cobalt (Cr-Co) using a laser sintering device. Ten crowns per thickness were produced using two types of 3D printers: SLA and DLP. The fracture resistance of the crowns was tested after thermal aging (5/55 oC and 30 s dwell time). The data were analyzed with Independent sampleT-test.Results: There was no significant difference in fracture resistance between the manufacturing methods for crowns in all three thickness groups (p > 0.05). The highest average fracture value was observed in crowns with a thickness of 1.5 mm manufactured using SLA 3D printing.Conclusion: Within the limits of this study, the 3D printing manufacturing method did not affect the fracture resistance of 3D printed primary tooth crowns. It was concluded that these crowns have sufficient fracture resistance and can be used as an alternative treatment option for complete crown of primary teeth.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-18"},"PeriodicalIF":0.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Clinical Evaluation of Lithium Disilicate Chairside CAD/CAM Crown after 10-years. 二硅酸锂椅子式CAD/CAM冠10年后的临床评价。

The International journal of prosthodontics Pub Date : 2025-02-24 DOI: 10.11607/ijp.9257

Dennis J Fasbinder, Gisele Neiva, Don Heys, Ron J Heys

{"title":"Clinical Evaluation of Lithium Disilicate Chairside CAD/CAM Crown after 10-years.","authors":"Dennis J Fasbinder, Gisele Neiva, Don Heys, Ron J Heys","doi":"10.11607/ijp.9257","DOIUrl":"https://doi.org/10.11607/ijp.9257","url":null,"abstract":"Purpose: This longitudinal clinical trial studied the clinical performance of chairside CAD/CAM fabricated lithium disilicate crowns (IPS e.max CAD; Ivoclar) over ten years of service.Materials and methods: 100 CAD/CAM lithium disilicate crowns were fabricated using the CEREC 3 system (Dentsply Sirona). The crowns were adhesively bonded in consecutive groups with one of three cements. ML = self-etching bonding agent and resin cement (MultiLink-Automix; Ivoclar), EC = self-adhesive resin cement (Experimental Cement; Ivoclar), and SC =self-adhesive, light-cured resin cement (SpeedCem; Ivoclar).Results: Mild sensitivity was reported on 15% of the teeth at 1 week. All sensitivity resolved by 4 weeks. At 6 months, 2 (8.7%) of the crowns cemented with ML and 3 (7.7%) of the crowns cemented with EC were described as slightly sensitive by the patient. No patient required treatment for sensitivity and there was no reported sensitivity at any subsequent recalls. The percent alpha scores were above 95% for color match and margin adaptation at all recall intervals. Four crowns debonded, 3 cemented with EC (13, 20 and 36 months) and 1 with ML (36 months). A second MultiLink crown debonded at 110 months (9 years, 2 months). There were four reported cases of crown fracture between 6 years 3 months and 9 years 9 months. There were two biological failures; one due to endodontic treatment and one due to fracture and loss of the core.Conclusions: The lithium disilicate crowns performed very well over 10 years. This study was supported by a grant from Ivoclar.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-29"},"PeriodicalIF":0.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0