- By : Eui-Seok Lee
Prospective Study of Wide-diameter Implants- Survival Rate and Marginal Bone Loss
Author: Eui-Seok Lee
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Introduction Wider implants can predict higher success rates. However, there are few studies on these implants. Therefore, we analyzed the associations between wide implants and survival rates and evaluated the related alveolar bone conditions.Materials and MethodsA total of 38 patients (29 men and 9 women), with a mean age of 52.59 years (range: 30u201369 years) were operated on and followed for one year after the final setting of the prosthetics. For our analyses, we divided the group by implant length and site, age, presence of bone graft, immediate implant placement, and smoking. Using X-rays, we investigated alveolar bone resorption around the implant fixtures and analyzed the average mesial and distal resorption with independent t tests and ANOVA (P
- By : Tomas Linkevic̆ius
Zero Bone Loss Concepts
Author: Tomas Linkevic̆ius
Publisher:
ISBN: 9780867158342
Category :
Languages : en
Pages :
Book Description
- By : Alessandro Luigi Rossi
Marginal Peri-implant Bone Loss Associated with Two Implant Macrostructures- a Prospective Simmetrical Split Mouth Study
Author: Alessandro Luigi Rossi
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Background and Aim: Stable peri-implant bone levels are unanimously considered a fundamental premise to achieve success in implant dentistry. Heterogenous results were published with respect to the influence of a conical versus straight implant collars design on marginal peri-implant bone loss (MBL). The first observations on conical implants with a machined neck reported higher values of MBL compared to straight implant fixtures. However, further investigations reported controversial outcomes, supporting no difference in MBL between conical and straight implant collars on one hand, and significant differences on the other.u2028The purpose of this randomized split-mouth clinical trial was to assess whether two implant fixtures with identical surfaces, prosthetic connections, coronal diameters and lengths, exhibit any significant difference in: a. MBL; b. implant success and survival rates; c. peri-implant probing depth (PD) and bleeding on probing (BOP), after a 3 year follow-up period. Methods and Materials: Ten patients presenting with single tooth symmetric posterior edentulous spaces, received a straight collar implant in one site (OsseoSpeed TX 5.0 S Astra Tech Implant System), and a conical collar implant in the symmetric contralateral one (OsseoSpeed TX 5.0, Astra Tech Implant System). All edentulous sites did not require bone regeneration in order to place 5mm implants with a minimum length of 9mm, as the inclusion criteria required a minimum residual bone height of 12mm and a minimum residual bone width of 7mm per site. All patients received implants with matching lengths in the two symmetric sites. Patients were followed-up for 36 months to evaluate: a) MBL; b) implant survival and success rates according to Albrektsson et al. criteria (1986); c) peri-implant probing depth (PD) and bleeding on probing (BOP).Results: All patients were evaluated at their last recall with a clinical evaluation and a periapical radiograph, standardized through the customization of a Rinnu2019s film holder. No implant failed to osseointegrate or required to be removed. All patients maintained adequate plaque and bleeding on probing indexes during the follow-up period. The evaluation conducted on the periapical radiographs through an image processing and analysis software (Image Ju00ae) revealed a marginal peri-implant bone loss ranged from 0 to 0.5 mm in 80% of cases and from 0.5 to 1 mm in 15%. In a single implant (control group), a 1.9 mm vertical bone resorption was observed. Thus, the survival and success rates according to Albrektsson et al. criteria were 100% and 95%, in the test and control group, respectively. No significant differences were observed between the two sites, with respect to MBL, peri-implant probing depth (PD) and bleeding on probing (BOP).Conclusions: Despite the short follow-up period and the limited external validity of our results, this study suggest that large diameter implants with a straight or conical implant collar macrostructure are equally reliable in the rehabilitation of single tooth posterior edentulous spaces.
- By : Tiziano Testori
- Dental implants
Immediate Loading
Author: Tiziano Testori
Publisher: Quintessence Publishing (IL)
ISBN: 9781850972020
Category : Dental implants
Languages : en
Pages : 0
Book Description
Patient-centered outcomes: the patient's viewpoint / M. Del Fabbro and T. Testori -- Management of the implant patient: state of the art / J. Ganeles, F. Bianchi, and F. Mandelli -- Medicolegal implications and clinical guidelines in immediate loading / M.L. Scarpelli, L. Fumagalli, and M. Del Fabbro -- The Role of computer-assisted surgery / T. Testori, L. Fumagalli, and M. Del Fabbro -- Guidelines for the collection and organization of scientific data / M. Del Fabbro and T. Testori.
- By : Daniel Wismeijer
- Medical
Loading Protocols in Implant Dentistry
Author: Daniel Wismeijer
Publisher: Quintessenz Verlag
ISBN: 1850973458
Category : Medical
Languages : en
Pages : 345
Book Description
Implant dentistry has become a standard option for the rehabilitation of fully and partially edentulous patients. With the ever-increasing number of dentists involved in implant dentistry, it is essential to ensure that their treatment methods follow the highest standard. The ITI Treatment Guide series, a compendium of evidence-based implant-therapy techniques in daily practice, is written by renowned clinicians and provides a comprehensive overview of various therapeutic options. Using an illustrated step-by-step approach, the ITI Treatment Guide shows practitioners how to manage different clinical situations, with the emphasis on sound diagnostics, evidence-based treatment concepts, and predictable treatment outcomes. The second volume of the ITI Treatment Guide is devoted to the restoration of partially dentate patients. Central to this volume of the ITI Treatment Guide are loading protocols available to the clinician and the patient and how they relate to various treatment indications, including both single and multiple missing teeth in the posterior and anterior regions of the mouth. Among potential topics for upcoming volumes are implant placement in extraction sockets, loading protocols in edentulous patients, implant therapy in the esthetic zone in extended edentulous spaces, and many more.
- By : Ka-Yee Lau
A Systematic Review on Survival and Success Rates of Implants Placed Immediately Into Fresh Extraction Sockets After at Least One Year
Author: Ka-Yee Lau
Publisher:
ISBN: 9781361271346
Category :
Languages : en
Pages :
Book Description
This dissertation, "A Systematic Review on Survival and Success Rates of Implants Placed Immediately Into Fresh Extraction Sockets After at Least One Year" by Ka-yee, Lau, Lui, Pun, 劉嘉儀, 潘磊, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Background: Type I immediate implant placement has gained popularity because it may reduce treatment time, number of surgeries and post-extraction bone loss. However, this is potentially challenged by inadequate keratinized mucosa for flap adaptation and difficulties in achieving primary stability. Moreover, it has been proven that post-extraction bone loss is an inevitable biological process, which affects treatment outcomes. Objectives: To estimate survival and success rates of implants and the implantsupported prostheses, the prevalence of biological, technical and aesthetic complications, and the magnitude of soft and hard tissue changes following implant placement immediately into fresh extraction sockets. Material & methods: An electronic search in MEDLINE (PubMed) and the Cochrane library from 1991 to July 2010 was performed to include prospective studies on immediate implants with a mean follow-up time of at least 1 year. The survival rates were computed using the STATA statistical software. Weighted means of soft and hard tissue changes were obtained by the inverse variance method. Results: A total of 46 prospective studies, with a mean follow-up time of 2.08 years, were included. The annual failure rate of immediate implants was 0.82% (95% CI: 0.48%-1.39%), translating into the 2-year survival rate of 98.4% (97.3%-99.0%). Among the 5 factors analyzed [reasons for extraction, antibiotic use, position of implant (anterior versus posterior, maxilla versus mandible), type of loading], only the regimen of antibiotic use affected the survival rate significantly. Lower failure rates were found in groups that were provided with a course of post-operative antibiotics. The success of implant therapy was difficult to assess due to scarce reporting on biological, technical and aesthetic complications. Soft tissue changes occurred mostly in the first 3 months after the provision of restoration, and then stabilized towards end of the first year. Marginal bone loss predominantly took place in the first year after implant placement, with a magnitude generally less than 1mm. Controversy on hard tissue preservation with platform-switching technique remained unsolved. Conclusions: Despite the high survival rate observed, more long-term studies are necessary to determine the success of implant treatment provided immediately after tooth extraction. Special attention has to be given to aesthetic outcomes. DOI: 10.5353/th_b4696056 Subjects: Dental implants
- By : Oliveira Guilherme
Effect of Different Implant-abutment Mismatch Sizes on Marginal Bone Loss U00f1 Prospective Clinical Trial
Author: Oliveira Guilherme
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Background: The horizontally inward repositioning of the implant-abutment interface, so called platform-switching (PS), has been suggest as capable of reducing the periimplant marginal bone loss. However, PS has been a generic term used for different implant-abutment mismatch sizes, among the studies. It is yet not well understood to which extent different mismatch size may influence the extension of marginal bone preservation for PS implants. Aim: To evaluate the effect of different implant-abutment mismatch sizes on marginal periimplant bone loss. Materials and methods: Twelve patients received four u00d8 4.5 x 13 mm external hex implants, and abutments diameters of 4.5 mm (conventional matching implant-abutment design u2013 CMD), 4.1 mm (PS04), 3.8 mm (PS07) and 3.3 (PS12), randomly placed based on a split-mouth design. Clinical parameters were evaluated at 6 sites around the implants, at a 12, 36, and 60 months follow-up. The distance from the top of the implant to the first bone-to-implant contact u2013 IT-FBIC was evaluated on standardized digital peri-apical radiographs acquired at 1, 3, 6, 12, 36 months follow-up. Comparison among multiple periods of observation were performed using repeated-measures Analysis of Variance (ANOVA), followed by a Tukey post-hoc test, while two-period based comparisons were made using paired t-test. Further, 12 computer-tomographic based finite element (FE) models were accomplished and the results for the peak EQV strain in periimplant bone were interpreted by means of ANOVA. Results: After 3 years follow-up, the variation in periimplant bone loss assessed from the radiographs was different between CMD (1.88 u00b1 0.41), PS07 (1.14 u00b1 0.94) and PS12 (0.74 u00b1 0.58), p
- By :
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 446
Book Description
- By : Abitbol Jeremy
Wide Diameter Implants for Single Tooth Restorations in the Molar Region- A Retrospective Study
Author: Abitbol Jeremy
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Immediate placement and loading of dental implants in fresh extraction sites are demanding situations for achieving high primary stabilty and low bone resorption. These challenges are particularly important in the molar region. To meet the needs of patients requiring tooth replacement in such indications, wide diameter variable-thread tapered implants were developed. Further trials are necessary to evaluate the performance of wide diameter implants in every day clinical practice.The aim of this retrospective study was to evaluate the safety and efficacy of wide diameter variable-thread tapered implants primarily placed in fresh extraction sites in the molar region. Marginal bone level change, implant survival, and implant stability were evaluated.This is a retrospective, non-interventional, analysis of de-identified data from patients treated in one center. Patients who received at least one wide diameter variable-thread tapered implant (NobelActive WP, Nobel Biocare) in the molar region between April and October 2014 were included. Patients with bone defects were considered unsuitable to receive implants immediately. Grafting was performed in all fresh extraction sites using anorganic bovine bone matrix. No covering membranes were used. A provisional restoration was placed immediately after implant insertion when primary implant stability (insertion torque) was higher or equal to 35 Ncm. At last follow-up, implant stability was assessed by rocking and tapping and radiographs were taken as part of routine treatment. Descriptive statistical analysis was performed using SPSS 24 (IBM, USA).Ten wide diameter (5.5 mm) variable-thread tapered implants (length 7-13 mm) were placed in the mandibular molar region of 9 patients (6 female, 3 male). The mean age of patients was 63.1 years (range 34-85 years). 90% of implants were place in the septum of fresh extaction sites and one was placed in a previously healed site. Nine implants, with insertion torques u226535 Ncm, were immediately loaded (
- By : In-Sung Yeo
- Science
Dental Implant Materials 2019
Author: In-Sung Yeo
Publisher: MDPI
ISBN: 3036504168
Category : Science
Languages : en
Pages : 196
Book Description
Dental implant materials are advancing in the fusion of various scientific fields. Surface modification technologies for implants have been applied to titanium at the micro-level for about four decades. Now, implant surfaces are being topographically and chemically modified at both the micro- and nano-level. The modification techniques are altering other metals and ceramics, making these materials more biocompatible. Materials for abutments in dental implant systems appear to depend on implant–abutment connection structures. Biomechanical factors, such as friction and preload, influence the development of the abutment materials. Additionally, the surfaces of the abutment materials are important in the soft-tissue attachment, which is being actively investigated. As dental implants have to be functional in human bodies for a long time, numerous materials are being clinically tested as implant-supported restorations. The Special Issue, “Dental Implant Materials 2019”, introduces the creative works of scientists on the current advancements in the field of materials for implant dentistry.
