Removable Prostheses May Enhance Marginal Bone Loss Around Dental Implants: A Long-Term Retrospective Analysis

2007 ◽  
Vol 78 (12) ◽  
pp. 2253-2259 ◽  
Author(s):  
Moshik Tandlich ◽  
Jakob Ekstein ◽  
Pini Reisman ◽  
Lior Shapira
Keyword(s):  
Bone Loss ◽  
Retrospective Analysis ◽  
Dental Implants ◽  
Marginal Bone Loss

scholarly journals Does Implant-Abutment Interface affect Marginal Bone Levels around Implants?

2019 ◽  
Vol 13 (01) ◽  
pp. 047-052 ◽  
Author(s):  
Eser Elemek ◽  
Artun Urgancioglu ◽  
Janberd Dincer ◽  
Altug Cilingir
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Marginal Bone Loss ◽  
Single Crown ◽  
Implant Abutment ◽  
Different Types ◽  
Group A ◽  
Group B ◽  
Switch Group

Abstract Objective The use of dental implants with different types of surface roughness and implant-abutment interface has brought about a situation of marginal bone loss. Therefore, the aim of this study was to analyze and compare marginal bone levels of different types of osseointegrated dental implants with platform switch (Group A: Ankylos, Mannheim, Germany) and platform match (Group B: Dentsply Xive, Mannheim, Germany, and Group C: MIS Implant Technologies, Karmiel, Israel). Materials and Methods One hundred and seven patients (52 men and 55 women) with a mean age of 54.79 (standard deviation ± 12.35) years and a total of 321 dental implants (Group A, n = 198; Group B, n = 58; and Group C, n = 65) placed in a private practice between April 2006 and May 2015 were retrospectively analyzed. In addition to demographic information and implant characteristics, marginal bone levels were evaluated by Image J (Wayne Rasband, National Institute of Health, Maryland) program. Results The mean age of all patients was 54.79 ± 12.35 years, and 51.5% of them were women. Implants supporting fixed bridge were most commonly used in all groups (65%), whereas only 20% were restored with a single crown and 15% with overdentures. In total, 47.5% of all implants showed no marginal bone loss. Mean bone loss in Group A was significantly lower (0.81 ± 1.60 mm) as compared to Group B (1.58 ± 1.59 mm) and Group C (1.18 ± 1.36) (p < 0.005). Conclusion Among different types of dental implants, platform switch seems to preserve marginal bone levels and increase the long-term success of dental implants.

Long-Term Marginal Bone Loss Around Single Dental Implants Affected by Current and Past Smoking Habits

2008 ◽  
Vol 17 (4) ◽  
pp. 422-429 ◽  
Author(s):  
Liran Levin ◽  
Ran Hertzberg ◽  
Shahar Har-Nes ◽  
Devorah Schwartz-Arad
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Smoking Habits ◽  
Marginal Bone Loss

Marginal Bone Loss Around Implants Supporting Fixed Restorations

2011 ◽  
Vol 37 (5) ◽  
pp. 549-558 ◽  
Author(s):  
Emre Mumcu ◽  
Hakan Bilhan ◽  
Ali Cekici
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Radiographic Evaluation ◽  
Marginal Bone Loss ◽  
Implant Size ◽  
Bone Level ◽  
Marginal Bone Level ◽  
Implant Length

A key criterion of success following dental implants is the marginal bone level. Long-term clinical and radiographic evaluation is necessary to test the results of in vitro studies investigating how cantilevering of restorations or implant size affect bone level changes around implants. There is no consensus on the effect of several variables such as age, gender, implant size, and cantilever prostheses on marginal bone levels around fixed dentures supported by dental implants. Patients who received cemented, fixed restorations supported by implants and who were examined in routine recall sessions 6, 12, 24, and 36 months after loading were included in the study group. Comparative bone level measurements were obtained from images of radiographs at ×20 magnification using the CorelDraw 11.0 software program. Statistical analysis was performed using the Student t test and 1-way analysis of variance. In the 36-month observation period, there were no incidences of implant failure, excessive bone loss around implants, or peri-implant inflammation. One hundred twenty-six implants in 36 patients were evaluated, and the effect of several factors on marginal bone loss (MBL) during the 36 months after loading was analyzed statistically. There was no significant relationship between MBL and implant length or diameter, whereas age, gender, and cantilevers affected bone loss rates. MBL was elevated in older and female patients as well as in patients who received cantilevers. In cases of limiting anatomic conditions, short and/or narrow implants should be preferred over cantilever extensions.

scholarly journals Evaluation of the Peri-Implant Bone Level around Platform-Switched Dental Implants: A Retrospective 3-Year Radiographic Study

2019 ◽  
Vol 16 (14) ◽  
pp. 2570 ◽  
Author(s):  
Yu Hwa Pan ◽  
His Kuei Lin ◽  
Jerry C-Y Lin ◽  
Yung-Szu Hsu ◽  
Yi-Fan Wu ◽  
...  
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Radiographic Study ◽  
Marginal Bone Loss ◽  
Long Term Stability ◽  
Bone Level ◽  
Marginal Bone Level ◽  
The Mean ◽  
Observation Period

Objective: To describe remodeling of the mesial and distal marginal bone level around platform-switched (PS) and platform-matched (PM) dental implants that were sandblasted with large grit and etched with acid over a three-year period. Materials and Methods: Digital periapical radiographs were obtained at the following time-points: during Stage I of the surgical placement of dental implants, before loading, immediately after loading (baseline), and one, three, six, 12, and 36 months after loading for measuring the horizontal and vertical marginal bone levels. Results: Sixty implants were successfully osseointegrated during the overall observation period. Vertical marginal bone levels for the PS and PM dental implants were 0.78 ± 0.77 and 0.98 ± 0.81 mm, respectively, whereas the horizontal marginal bone levels for the PS and PM implants were 0.84 ± 0.45 and 0.98 ± 0.68 mm, respectively. During the time leading up to the procedure until 36 months after the procedure, the average vertical marginal bone level resulted in less bone loss for the PS and PM groups—0.96 ± 1.28 and 0.30 ± 1.15 mm, respectively (p < 0.05). The mean levels of the horizontal marginal bone also showed increases of 0.48 ± 1.01 mm in the PS and 0.37 ± 0.77 mm in the PM groups from the time before loading until 36 months after the procedure. However, these increases were not statistically significant (p > 0.05). Conclusion: PS dental implants appeared to be more effective than PM implants for minimizing the mean marginal vertical and horizontal marginal bone loss during the three-year period. Regardless of which abutment connection was used, the dental implant in the present retrospective investigation exhibited minimal marginal bone remodeling, thus indicating long-term stability.

scholarly journals Prosthetic complications of fixed dental prostheses supported by locking-taper implants: A retrospective study with a mean follow-up of 5 years.

2021 ◽  
Author(s):  
Wen Mo Gao ◽  
Wei Geng ◽  
Chen Chen Luo
Keyword(s):  
Retrospective Study ◽  
Bone Loss ◽  
Regression Model ◽  
Protective Factor ◽  
Cox Regression ◽  
Marginal Bone Loss ◽  
Cox Regression Model ◽  
Prosthetic Complications ◽  
Free Rate

Abstract Background: Restoration with locking-taper implants is a widely used methodology. However, relatively few have examined conical connection systems like locking-taper implant systems. This study provides a retrospective study of locking-taper fixed restorations, mainly focused on prosthetic complications.Methods: All patients who underwent conical connected implants from 2008–2010 were examined. Preparation of the implant sites was performed according to the standard procedures for the Bicon system. The bone healing took over 6 months, and the prosthetic procedure was initiated thereafter. Integrated abutment crowns or gold porcelain crowns were used, and the prosthesis type was a single crown or a fixed dental prosthesis. Once the crown was in place, its occlusion was thoroughly checked and adjusted, and then the crown was glazed or finely polished. The Kaplan-Meier method was used to calculate the cumulative complication-free rates for 5 and 10 years. Additionally, a Cox regression model was used to identify the factors that independently influenced the results. Implant survival and marginal bone loss were also investigated.Results: A total of 392 patients who underwent 541 implants and 434 locking taper implant-based restorations from 2008–2010 were examined. The overall 5-year cumulative complication-free rate was 83.34%. The most common prosthetic complication was veneer chipping, with a frequency of 67.53%. According to the Cox regression model, the complication-free rate of integrated abutment crowns was significantly higher than gold porcelain crowns, molar regions was significantly higher than premolar regions, and females was significantly higher than males. Only three implant failures happened, and a mean marginal bone loss at 1- year, 5-year and 10- year was 0.25mm（95%CI：±0.12）, 0.40mm （95%CI：±0.03）and 0.51mm（95%CI：±0.05）, respectively.Conclusion: Veneer chipping was the most common complication with locking-taper implants supported fixed restorations. According to the result of Cox regression model, gold porcelain crowns are a protective factor relative to integrated abutment crowns, male sex is a protective factor relative to female sex, and premolar prosthetics are a protective factor relative to molar prosthetics. The long-term clinical effect of locking-taper implant is stable, and the implant success rate can meet the clinical needs. The bone tissue level around the implant can maintain long-term stability.

scholarly journals Clinical outcomes of dental implants placed in the same region where previous implants failed due to peri-implantitis: a retrospective study

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Eduardo Anitua ◽  
Adriana Montalvillo ◽  
Asier Eguia ◽  
Mohammad Hamdan Alkhraisat
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Bone Loss ◽  
Clinical Outcomes ◽  
Dental Implants ◽  
Demographic Data ◽  
High Survival ◽  
Implant Survival ◽  
Marginal Bone Loss ◽  
Bone Level

Abstract Purpose There is paucity in the studies that assess dental implants replacing failed dental implants due to peri-implantitis. This study aims to evaluate the clinical outcomes of these implants in terms of implant survival and marginal bone loss. Methods Patients in this retrospective study were selected if having one or more implants removed due to peri-implantitis and the placement and loading of dental implants in the same region from April 2010 to December 2019. Information was collected about the patient's demographic data, implant dimensions, surgical and prosthetic variables. Changes in peri-implant bone level, cumulative implant survival rate and technical complications were assessed. Results Three hundred and eighty one dental implants in 146 patients that were placed in the same position or one-tooth position mesially/distally to the site of explantation were included. The patients' mean age was 63 ± 10 years. Ninety seven patients were females and 49 were males. After a mean follow-up of 34 ± 17 months, two implants failed. The cumulative survival rate was 99%. The marginal bone loss was −0.1 ± 0.6. Immediate or delay replacement of the failed implant did not affect implant survival or marginal bone stability. All the prostheses were screw-retained and presented the following complications: ceramic chipping (3 events), resin tooth fracture (1 event) and prosthetic screw loosening (1 event). Conclusions Dental implants replacing failed implants due to peri-implantitis would be an option in the management of peri-implantitis. They showed high survival rate and marginal bone stability.

The prosthetic abutment height can affect marginal bone loss around dental implants

2018 ◽  
Vol 20 (5) ◽  
pp. 799-805 ◽  
Author(s):  
Bo-Ah Lee ◽  
Byoung-Heon Kim ◽  
Helen H.I. Kweon ◽  
Young-Taek Kim
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Marginal Bone Loss

scholarly journals Rehabilitation of an Extremely Resorbed Edentulous Mandible by Short and Narrow Dental Implants

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Ines Kovacic ◽  
Sanja Persic ◽  
Josip Kranjcic ◽  
Nikolina Lesic ◽  
Asja Celebic
Keyword(s):  
Dental Implants ◽  
Bone Volume ◽  
Bone Augmentation ◽  
Marginal Bone Loss ◽  
Mandibular Bone ◽  
Bone Width ◽  
Edentulous Mandible ◽  
Bone Height ◽  
Observation Period

Serious consequences of long-term complete denture wearing may be extreme residual ridge atrophy and a reduced area of keratinized oral mucosa of a denture-bearing area. This paper presents five clinical cases of extreme mandibular ridge atrophy, rehabilitated by means of mandibular overdentures retained by short mini dental implants. The patients had a reduced mandibular bone volume in the interforaminal region, bone height less than 10 mm, and buccolingual bone width less than 4 mm. In order to avoid bone augmentation, patients received four short mini dental implants (MDIs) (6 or 8 mm long; 2.0 or 2.5 mm wide) for the support of mandibular overdentures, which is a new rehabilitation option. After insertion, the MDIs were early loaded with new mandibular overdentures reinforced with the CoCr framework. The patients have been wearing their overdentures for 2 years. One MDI broke during insertion and a new one was added. One patient lost one MDI but successfully continued to wear the overdenture retained by the remaining three MDIs. Mean marginal bone loss (MBL) was 0.20 ± 0.19 mm. Patients significantly improved their OHRQoL and chewing function by reducing the summary scores of the OHIP-14 and the chewing function questionnaires. The improvements remained unchanged throughout the observation period.

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