scholarly journals Evaluation of the Success Criteria for Zirconia Dental Implants: A Four-Year Clinical and Radiological Study

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Andrea Enrico Borgonovo ◽  
Rachele Censi ◽  
Virna Vavassori ◽  
Marcello Dolci ◽  
Josè Luis Calvo-Guirado ◽  
...  
Keyword(s):  
Radiographic Evaluation ◽  
First Year ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Implant Placement ◽  
Bone Preservation ◽  
Bone Level ◽  
Marginal Bone Level ◽  
The Mean ◽  
Zirconia Implants

Objectives. The aim was to evaluate survival and success rates, soft tissue health, and radiographic marginal bone loss (MBL) of zirconia implants placed in the esthetic and posterior areas of the jaws and in association with multiple or single implant restorations after at least 6 months of definitive restoration.Material and Methods. 35 one-piece zirconium implants were utilized for single or partially edentulous ridges rehabilitation. All implants received immediate temporary restorations and six months after surgery were definitively restored. Every 6 months after implant placement, a clinical-radiographic evaluation was performed. For each radiograph, the measurements of MBL were calculated.Results. The results showed that the mean MBL at 48-month followup was 1.631 mm. The mean MBL during the first year of loading was not more significant for implants placed in the first molar regions than for those positioned in other areas. Moreover, no differences in marginal bone level changes were revealed for multiple and single implants, whereas MBL in the first year was observed to be slightly greater for implants placed in the maxilla than for those placed in the mandible.Conclusion. Zirconia showed a good marginal bone preservation that could be correlated with one-piece morphology and characteristics of zirconia implants.

scholarly journals Alveolar Crestal Approach for Maxillary Sinus Membrane Elevation with <4 mm of Residual Bone Height: A Case Report

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Jae Won Jang ◽  
Hee-Yung Chang ◽  
Sung-Hee Pi ◽  
Yoon-Sang Kim ◽  
Hyung-Keun You
Keyword(s):  
Maxillary Sinus ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Reliable Technique ◽  
Implant Placement ◽  
The Mean ◽  
Window Approach ◽  
Bone Height ◽  
Sinus Membrane Elevation ◽  
Sinus Membrane

Introduction. For maxillary sinus membrane elevation (MSME), the lateral window approach and crestal approach are available, and high success rates have been achieved with low residual bone height as a development of technology. Objective. To evaluate MSME using the crestal approach with a rotary-grind bur (RGB (including reamer or sinus bur)) in patients with residual bone height of <4 mm. Materials and Methods. Ten implants were placed in 10 patients with residual bone height of <4 mm, by sinus elevation using an RGB. The implant stability quotient (ISQ) was measured immediately after implant placement (ISQ 1) and before taking impression for the final prosthesis (ISQ 2). The extent of marginal bone loss was measured on periapical radiographs. Results. The mean residual bone height before implant placement was 3.41 ± 0.53 mm; no complications, including membrane perforation, severe postoperative pain, or discomfort, occurred either during or after surgery. The mean ISQ 1 was 63.4 ± 12.1, whereas the mean ISQ 2 was 77.6 ± 5.8. The mean marginal bone resorption was 0.23 ± 0.18 mm on periapical radiographs. Conclusions. MSME using the crestal approach with an RGB is a reliable technique for implant placement in sites where available bone is insufficient.

scholarly journals A Clinical and Radiographic Evaluation of Zirconia Dental Implants: 10-Year Follow-Up

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Andrea Enrico Borgonovo ◽  
Susanna Ferrario ◽  
Carlo Maiorana ◽  
Virna Vavassori ◽  
Rachele Censi ◽  
...  
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Clinical Success ◽  
Radiographic Evaluation ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Single Tooth ◽  
Zirconia Implants

Purpose. The aim is to evaluate the survival and success rates, as well as the marginal bone loss (MBL) and periodontal indexes, of zirconia implants with 10-year follow-up. Materials and Methods. 10 patients were selected and 26 one-piece zirconia implants were used for the rehabilitation of single tooth or partially edentulous ridge. After 10 years, a clinical-radiographic evaluation was performed in order to estimate peri-implant tissue health and marginal bone loss. Results. The survival and success rates were 100%. The average marginal bone loss from baseline to 120 months after surgery was 0.92 ± 0.97 mm. Conclusion. One-piece zirconia dental implants are characterised by high biocompatibility, low plaque adhesion, and absence of microgap that can be related to the clinical success of these implants.

scholarly journals Evaluation of Marginal Bone Level around Platform-Switched Implants

2014 ◽  
Vol 4 (1) ◽  
pp. 6-10
Author(s):  
Abhishek Sharma ◽  
Karan Kapoor ◽  
Raj Gaurav Singh ◽  
Aanchal Puri ◽  
Rohit Mittal
Keyword(s):  
Bone Loss ◽  
First Year ◽  
Implant Placement ◽  
Crestal Bone Loss ◽  
Distal Side ◽  
Mandibular Molar ◽  
Bone Level ◽  
Platform Switching ◽  
Marginal Bone Level ◽  
The Stability

ABSTRACT Purpose The long-term success of an implant depends on the stability of bone support for the implant. Most crestal bone loss occurs in the first year of implant placement. Platform-switching is an approach which can be clinically applied to preserve the crestal bone. The concept of ‘platform switching’ refers to the use of a smaller-diameter abutment on a larger-diameter implant collar. The purpose of the present study was to evaluate crestal bone level around platform-switched implants. Materials and methods Twenty implants with 5 mm diameter were placed in mandibular molar region. All implants had been placed at the crestal level at the time of surgery. Radiographs with grid were obtained 3, 6 and 12 months after loading and were evaluated by screen caliper software measuring the location of the crestal bone level relative to the implant platform. Results The implants showed a mean bone loss of 0.76 ± 0.1265 mm on mesial side and 0.72 ± 0.1481 mm on distal side after 1 year. Conclusion The findings of the current trial indicated that the use platform-switched implants lead to better preservation of crestal bone. How to cite this article Kapoor K, Singh RG, Puri A, Sharma A, Mittal R. Evaluation of Marginal Bone Level around Platform- Switched Implants. Int J Prosthodont Restor Dent 2014;4(1): 6-10.

scholarly journals Zirconia Implants in Esthetic Areas: 4-Year Follow-Up Evaluation Study

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Andrea Enrico Borgonovo ◽  
Rachele Censi ◽  
Virna Vavassori ◽  
Oscar Arnaboldi ◽  
Carlo Maiorana ◽  
...  
Keyword(s):  
Bone Loss ◽  
Clinical Success ◽  
Evaluation Study ◽  
Radiographic Evaluation ◽  
Success Rates ◽  
Marginal Bone Loss ◽  
Pocket Depth ◽  
Probing Pocket Depth ◽  
Single Tooth ◽  
Zirconia Implants

Objectives.The aim is to evaluate the survival and success rates, as well as the marginal bone loss (MBL) and periodontal indexes of zirconia implants positioned in the esthetic jaw areas.Materials and Method.13 patients were selected and 20 one-piece zirconia implants were used for the rehabilitation of single tooth or partially edentulous ridge in the esthetic jaw areas. Six months after surgery and then once a year, a clinical-radiographic evaluation was performed in order to estimate peri-implant tissue health and marginal bone loss.Results.The survival and success rates were 100%. The average marginal bone loss from baseline to 48 months after surgery was +2.1 mm. Four years after surgery, the median and the mode for visible Plaque Index and Bleeding On Probing resulted 1 whereas Probing Pocket Depth amounted to 3 mm (SD = ±0.49 mm).Conclusion.One-piece zirconia dental implants are characterized by high biocompatibility, low plaque adhesion, and absence of microgap that can be related to the clinical success of these implants even in the esthetic areas.

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 Clinical and Radiographic Evaluation of Brånemark Implants with an Anodized Surface following Seven-to-Eight Years of Functional Loading

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
David Gelb ◽  
Bradley McAllister ◽  
Pirkka Nummikoski ◽  
Massimo Del Fabbro
Keyword(s):  
Dental Implants ◽  
Radiographic Evaluation ◽  
Radiographic Outcomes ◽  
Implant Placement ◽  
Single Tooth ◽  
Long Term Follow Up ◽  
Bone Level ◽  
The Mean ◽  
Functional Loading

The aim of this study was to evaluate the clinical and radiographic long-term outcomes of dental implants with an anodized TiUnite surface, placed in routine clinical practice. Two clinical centers participated in the study. One hundred and seven implants (80 in the maxilla and 27 in the mandible) in 52 patients were followed in the long term. Both one- and two-stage techniques were used for 38 and 69 implants, respectively. Thirty-eight single tooth restorations and 22 fixed partial prostheses were delivered, according to a delayed loading protocol, within 4 to 12 months since implant placement. All implants were stable at insertion and at the long-term follow-up visit, which occurred between 7 and 8 years of functional loading. The mean followup was7.33±0.47years. The mean marginal bone level change at the long-term followup as compared to baseline was1.49±1.03 mm. No implant failure occurred. Healthy peri-implant mucosa was found around 95% of implants, whereas 91% of implants showed no visible plaque at the implant surfaces at the long-term followup. The study showed that dental implants with the TiUnite anodized surface demonstrate excellent long-term clinical and radiographic outcomes.

Reproducibility and Detection Threshold of Peri-Implant Diagnostics

1993 ◽  
Vol 7 (2) ◽  
pp. 191-195 ◽  
Author(s):  
D. Van Steenberghe ◽  
M. Quirynen
Keyword(s):  
Detection Threshold ◽  
Repeated Measurements ◽  
Marginal Bone Loss ◽  
Oral Implants ◽  
Damping Characteristics ◽  
Bone Level ◽  
Marginal Bone Level ◽  
The Individual ◽  
Attachment Level ◽  
Individual Implant

There is an increasing awareness that, for clinical monitoring of oral implants, there is a need for reliable diagnostics and possibly prognostic parameters. Indeed, reports have too often limited results to an inventory of failures, while no mention was made of progressive marginal bone loss or other symptoms of a future failure. Several parameters, such as marginal bone level assessment and/or probing attachment level, give a precision of up to 0.5 mm. Both measurements also seem related. The damping characteristics of the individual implant/bone unit also offer a highly reproducible diagnostic tool. The Periotest® allows for detection of subclinical mobilities, and 95% of repeated measurements fall within a range of one unit on the arbitrary scale. So far, these three parameters offer no prognostic value.

scholarly journals The Effect of Tapered Abutments on Marginal Bone Level: A Retrospective Cohort Study

2019 ◽  
Vol 8 (9) ◽  
pp. 1305 ◽  
Author(s):  
Simone Marconcini ◽  
Enrica Giammarinaro ◽  
Ugo Covani ◽  
Eitan Mijiritsky ◽  
Xavier Vela ◽  
...  
Keyword(s):  
Cohort Study ◽  
Bone Loss ◽  
Linear Measurement ◽  
Bone Preservation ◽  
Bone Level ◽  
Marginal Bone Level ◽  
Loading Methods ◽  
One Year ◽  
Average Bone

Background: Early peri-implant bone loss has been associated to long-term implant-prosthetic failure. Different technical, surgical, and prosthetic techniques have been introduced to enhance the clinical outcome of dental implants in terms of crestal bone preservation. The aim of the present cohort study was to observe the mean marginal bone level around two-part implants with gingivally tapered abutments one year after loading. Methods: Mean marginal bone levels and change were computed following radiological calibration and linear measurement on standardized radiographs. Results: Twenty patients who met the inclusion criterion of having at least one implant with the tapered prosthetic connection were included in the study. The cumulative implant success rate was 100%, the average bone loss was −0.18 ± 0.72 mm, with the final bone level sitting above the implant platform most of the time (+1.16 ± 0.91 mm). Conclusion: The results of this cohort study suggested that implants with tapered abutments perform successfully one year after loading and that they are associated with excellent marginal bone preservation, thus suggesting that implant-connection macro-geometry might have a crucial role in dictating peri-implant bone levels.

scholarly journals Clinical and Radiological Evaluation of Marginal Bone Loss around Dental Implants Restored with Zirconium vis-à-vis Porcelain Fused to Metal: An In Vivo Study

2020 ◽  
Vol 08 (01) ◽  
pp. 17-21
Author(s):  
Udey Singh Wirring ◽  
Tarun Kalra ◽  
Manjit Kumar ◽  
Ajay Bansal ◽  
Aquib Javaid
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Test Group ◽  
Radiographic Evaluation ◽  
Control Group ◽  
Marginal Bone Loss ◽  
Zirconia Crowns ◽  
Bone Level ◽  
The Difference

Abstract Introduction Marginal bone level is the criterion for implant success. Patient expectations for more natural looking implant restorations created the need to restore implants with more esthetically pleasing materials like Zirconia rather than conventional porcelain-fused to-metal (PFM) crowns. The aim of this study was to evaluate marginal bone loss around dental implants clinically and radiographically when restored with Zirconia and PFM prosthesis. Materials and Methods Two groups (control and test) were formed with 14 patients each. In the control group, the subjects were rehabilitated with PFM crowns and in the test group, the subjects were rehabilitated with Zirconia crowns. Rehabilitation was done after the healing period of 3 months. Radiographic evaluation was done at regular (baseline, 3rd, 6th, and 12th month) intervals. Results The results were statistically analyzed. Keeping in mind the limitations of the study, it was revealed that the difference in the crestal bone resorption in both the groups was not significant.

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