Marginal Bone Loss Around Implants Supporting Fixed Restorations

Mumcu, Emre; Bilhan, Hakan; Çekici, Ali

doi:10.1563/aaid-joi-d-10-00018

Cited by 40 publications

(45 citation statements)

References 37 publications

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“…Marginal bone loss was notable in older and female patients, as well as in patients who had received cantilevers. Marginal bone loss was found to proceed more slowly in patients under 45 years of age, possibly due to lower bone vascularity and healing potential in older individuals (21). In the present study, patients over the age of 50 years showed statistically significantly greater bone loss.…”

Section: Discussionsupporting

confidence: 43%

A 36-month follow-up prospective cohort study on peri-implant bone loss of Morse Taper connection implants with platform switching

et al. 2016

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A prospective cohort study was designed to measure marginal bone level changes at 36-month follow-up and to evaluate the influence of biologically relevant, anatomic and stress-related variables. STROBE guidelines were followed. Totally, 748 implants were inserted into 350 patients. Standardized periapical radiographs were taken at 2-(stage-two surgery), 12-, 24-, and 36-month follow-ups. Descriptive statistics were used and inter-and intra-examiner reliability were determined. A mixed-model was used to evaluate predictor variables. Statistical analysis was performed at implant level (statistical significance: P < 0.05). A total of 34 (4.5%) implants failed; of the 34 implants, 6 were early failures (0.8%) and 28 were late failures (3.7%). A total of 576 implants reached 36-month follow-up (mean follow-up: 25.58 months; SD: 10.32). Mean marginal bone remodeling was −0.56 mm. (SD: 1.30; range: −6.80 ± 3.65). A statistically significant, higher marginal bone loss was found for subcrestal implants and subcrestal implants inserted into the maxilla, for implants inserted into patients aged over 50 years, and for early-delayed implants inserted into patients aged over 50 years. In conclusion, a low, mean crestal bone loss at 36-month follow-up was recorded but implant positioning in the apico-occlusal dimension was found to be the most significant variable that influenced bone loss. (J Oral Sci 58, 49-57, 2016)

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Section: Discussionsupporting

confidence: 43%

A 36-month follow-up prospective cohort study on peri-implant bone loss of Morse Taper connection implants with platform switching

et al. 2016

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“…A similar effect can be caused by the specifics of the masticatory force distribution through different designs of prosthetic suprastructures in the area of the implant-bone connection. Such results were obtained in a number of studies conducted by other authors [27][28][29].…”

Section: Discussionsupporting

confidence: 69%

Evaluation of Peri-Implant Bone Reduction Levels from Superimposition Perspective: Pilot Study among Ukrainian Implantology Practice

Goncharuk-Khomyn

Keniuk

2018

Pesqui. bras. odontopediatria clín. integr.

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Objective: To evaluate the possibility and efficiency of using adapted peri-implant bone evaluation method based on the principle of graphical superimposition and compare it to the possibilities of using sagittal sections of CBCT results to register the dynamics of peri-implant bone changes during the first year of implant functioning. Material and Methods: 108 pairs of DICOM data sets were selected and pre-anonymized and coded in Planmeca Romexis ® Viewer software. Each pair of datasets consisted of a CBCT file, obtained immediately after the installation of a dental implant, and one year after its operation. The first method of peri-implant bone changes evaluation was carried out by analyzing the sagittal sections of the CBCT data from the mesial and distal sides of the implant. The second method was followed by original algorithm, which included specific steps of superimposition of graphical images. Results: Superimposition method helped to establish volumetric parameter of circular bone reduction around dental implants after 1 year of their functioning. Such average values for the maxillary distal implants were 3.547 mm3, maxillary frontal implants -3.118 mm3, mandibular distal implants -2.614 mm3, mandibular frontal implants -2.456 mm 3. Correlation values between averages of vertical bone loss parameters and volumetric bone loss parameters riches r=0.954. Among all patients the highest peri-implant bone reduction rates were observed in the distal and frontal areas of the maxilla, even though statistical difference among such parameters of implants installed at the areas of mandible and maxilla was not significant (p > 0.05). Such observation was established during the analysis of results obtained both by digital sagittal cross section from CBCT results and by superimposition method. Conclusion: Using the superimposition principle allows us to evaluate the individual indicator of volumetric bone loss at the peri-implant region. The possibility of taking into account the parameters of bone tissue volume reduction, instead of just geometrical parameter of bone height, allows to individualize the parameters of bone loss among patients of different prosthetic rehabilitation group.

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“…Retrospective study shows the relation between bone loss and cantilevers [40]. The behaviour of different sized restorations was compared: single-unit, fixed partial, fixed full.…”

Section: Discussionmentioning

confidence: 99%

The Prosthetic Influence and Biomechanics on Peri-Implant Strain: a Systematic Literature Review of Finite Element Studies

Maminskas¹,

Puišys²,

Kuoppala³

et al. 2016

JOMR

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ObjectivesTo systematically review risks of mechanical impact on peri-implant strain and prosthetic influence on stability across finite element studies.Material and MethodsAn online literature search was performed on MEDLINE and EMBASE databases published between 2011 and 2016. Following keywords tiered screening and selection of the title, abstract and full-text were performed. Studies of finite element analysis (FEA) were considered for inclusion that were written in English and revealed stress concentrations or strain at peri-implant bone level.ResultsThere were included 20 FEA studies in total. Data were organized according to the following topics: bone layers, type of bone, osseointegration level, bone level, design of implant, diameter and length of implant, implant-abutment connection, type of supra-construction, loading axis, measurement units. The stress or strain at implant-bone contact was measured over all studies and numerical values estimated. Risks of overloading were accented as non-axial loading, misfits, cantilevers and the stability of peri-implant bone was related with the usage of platform switch connection of abutment.ConclusionsPeri-implant area could be affected by non-axial loading, cantilever prosthetic elements, crown/implant ratio, type of implant-abutment connection, misfits, properties of restoration materials and antagonistic tooth. The heterogeneity of finite element analysis studies limits systematization of data. Results of these studies are comparable with other findings of in vitro, in vivo, prospective and retrospective studies.

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Marginal Bone Loss Around Implants Supporting Fixed Restorations

Cited by 40 publications

References 37 publications

A 36-month follow-up prospective cohort study on peri-implant bone loss of Morse Taper connection implants with platform switching

A 36-month follow-up prospective cohort study on peri-implant bone loss of Morse Taper connection implants with platform switching

Evaluation of Peri-Implant Bone Reduction Levels from Superimposition Perspective: Pilot Study among Ukrainian Implantology Practice

The Prosthetic Influence and Biomechanics on Peri-Implant Strain: a Systematic Literature Review of Finite Element Studies

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