scholarly journals Early Marginal Bone Loss around Submerged Implants According to the Patterns of Cover Screw Exposures

2013 ◽  
Vol 29 (2) ◽  
pp. 175-182
Author(s):  
Mee-Ra Choi ◽  
Chan-Jin Park
Keyword(s):  
Bone Loss ◽  
Marginal Bone Loss ◽  
Cover Screw

scholarly journals Influence of implant cover screw loosening on early peri-implant marginal bone loss: a retrospective evaluation of risk factors

2021 ◽  
Author(s):  
Yin Wuwei ◽  
Yang Yong ◽  
Wu Zhenzhen ◽  
Chen Pei ◽  
Yang Zinan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bone Loss ◽  
Healing Process ◽  
Significant Risk ◽  
Inflammatory Cells ◽  
Significant Risk Factor ◽  
Pathological Examination ◽  
Screw Loosening ◽  
Marginal Bone Loss ◽  
Cover Screw

Abstract Background: This study aimed to evaluate the risk factors of cover screw loosening (CSL) and its influence on peri-implant marginal bone during early bone healing process.Methods: A total of 91 implants in 90 patients (75 normal patients and 15 patients with CSL) were included in this study. Panoramic radiographs were taken for the measurement of peri-implant marginal bone loss (MBL). A piece of soft tissue above the cover screw during the second-stage surgery was taken for pathological examination. The differences between the two groups were evaluated and the possible risk factors associated with CSL were analyzed.Results: Increased frequency of CSL showed significant association with maxillary region (p=0.038). The mean MBL at implants with CSL was 0.82 ± 0.56 mm, and it was 0.22 ± 0.20 mm at normal implants (p<0.001). The inflammatory granulation tissue around the loose cover screws showed infiltration of a large number of inflammatory cells.Conclusions: CSL during healing process is associated with early peri-implant MBL. The location of the maxilla is considered as a significant risk factor for CSL.

An evaluation of peri-implant marginal bone loss according to implant type, surgical technique and prosthetic rehabilitation: a retrospective multicentre and cross-sectional cohort study

Odontology ◽  
2021 ◽  
Author(s):  
Lizett Castellanos-Cosano ◽  
Alba Carrasco-García ◽  
José-Ramón Corcuera-Flores ◽  
Javier Silvestre-Rangil ◽  
Daniel Torres-Lagares ◽  
...  
Keyword(s):  
Cohort Study ◽  
Surgical Technique ◽  
Bone Loss ◽  
Prosthetic Rehabilitation ◽  
Marginal Bone Loss ◽  
Cross Sectional

scholarly journals Severe chronic obstructive pulmonary disease: Association with marginal bone loss in periodontitis

2008 ◽  
Vol 102 (4) ◽  
pp. 488-494 ◽  
Author(s):  
I. Leuckfeld ◽  
M.V. Obregon-Whittle ◽  
M.B. Lund ◽  
O. Geiran ◽  
Ø. Bjørtuft ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Bone Loss ◽  
Pulmonary Disease ◽  
Disease Association ◽  
Chronic Obstructive ◽  
Marginal Bone Loss ◽  
Obstructive Pulmonary Disease

scholarly journals Aesthetic Outcomes and Peri-Implant Health of Angled Screw Retained Implant Restorations Compared with Cement Retained Crowns: Medium Term Follow-Up

2021 ◽  
Vol 12 (2) ◽  
pp. 35
Author(s):  
Livia Nastri ◽  
Ludovica Nucci ◽  
Vincenzo Grassia ◽  
Rino Miraldi
Keyword(s):  
Bone Loss ◽  
Functional Results ◽  
Technical Solution ◽  
Marginal Bone Loss ◽  
Single Tooth ◽  
Natural Teeth ◽  
The Aesthetic ◽  
Single Implant ◽  
Single Tooth Implant

Single tooth implant restorations in the aesthetic area are a demanding challenge. If a complete osseointegration is mandatory, the final result has to result in a higher standard of biomimetic and soft tissue health among natural teeth. This outcome is traditionally pursued by cementing crowns over individualized abutments. However, in recent years, the need for controlling peri-implant health and the preference towards a retrievable solution has led to an increase in screw-retained crowns, which is not always applicable when the implant axis is not ideal. In the aesthetic area, the use of a novel technical solution represented by the angled screw channel (ASC) of the abutment has been proposed in order to match the advantages of the screwed solution with the aesthetic demands. The aim of this study was to compare ASC crowns to cemented crowns (CC) in single implant restorations using the white esthetic score (WES) and pink esthetic score (PES) at the crown delivery and at a follow-up of a minimum of 2 years. Peri-implant health and marginal bone loss (MBL) were also evaluated. The mean follow-up was 44.3 months, with a mean MBL of 0.22 mm in the ASC group and 0.29 mm in the CC group. The total WES/PES score was 16.6 for ASC, compared with 17.3 for CC at baseline, and 16.2 and 17.1, respectively, at follow-up. Both of the groups reached a high WES/PES, and this was maintained over time, without signs of peri-implant diseases or bone loss, regardless of the choice of connection. In conclusion, ASC can be adopted in cases where the implant axis is not ideal, with aesthetic and functional results that are comparable to implants restored by cemented crowns.

scholarly journals Marginal bone loss around oral implants supporting fixed versus removable prostheses: a systematic review

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Babak E. Saravi ◽  
Maria Putz ◽  
Sebastian Patzelt ◽  
Amir Alkalak ◽  
Sara Uelkuemen ◽  
...  
Keyword(s):  
Systematic Review ◽  
Bone Loss ◽  
Marginal Bone Loss ◽  
Oral Implants

The Microtomographic Evaluation of Marginal Bone Resorption of Immediately Loaded Scalloped Design Implant With Various Microthread Configurations in Canine Mandible: Pilot Study

2010 ◽  
Vol 36 (5) ◽  
pp. 357-362 ◽  
Author(s):  
Young-Seok Park ◽  
Seung-Pyo Lee ◽  
Chong-Hyun Han ◽  
Joo Hyun Kwon ◽  
Young-Chul Jung
Keyword(s):  
Pilot Study ◽  
Bone Resorption ◽  
Bone Loss ◽  
Titanium Implant ◽  
Marginal Bone Loss ◽  
Future Studies ◽  
Preliminary Study ◽  
Type 3

Abstract This study was undertaken to evaluate the effect of microthread geometry of scalloped design implant on marginal bone resorption. Four types of scalloped design titanium implant specimens were prepared. The type 1 implant had a machined scalloped collar, type 2 had a sandblasted and acid-etched scalloped collar, type 3 had horizontal microthreads, and type 4 had parabolic microthreads, which are parallel with the scalloped conical margin. Two implants of a type were randomly installed immediately after extraction in the mandible of a beagle dog. Definitive prostheses were delivered immediately after surgery. After 12 weeks of healing, the dog was sacrificed and microtomography was performed. Type 4 specimens showed a marginal bone loss pattern definitively analogous to the scalloped margin. In this preliminary study, microthread geometry affected the marginal bone resorption pattern of scalloped design implants. However, additional specimens and more controlled conditions should be applied in future studies to confirm these results.

scholarly journals Marginal Bone Loss and Aesthetics Around Zirconia and Titanium Dental Implants-A Metanalysis

2020 ◽  
Author(s):  
Pulijala Sathwika ◽  
Rampalli Viswa Chandra
Keyword(s):  
Bone Loss ◽  
Randomized Controlled Trials ◽  
Meta Analysis ◽  
Titanium Implants ◽  
Controlled Trials ◽  
Marginal Bone Loss ◽  
Randomized Controlled ◽  
Cie Lab ◽  
Titanium Dental Implants ◽  
Zirconia Implants

AIM: To evaluate and compare the marginal bone loss and aesthetic outcomes of zirconia implants with titanium implants in randomized controlled trials (RCTs). MATERIAL AND METHODS: Electronic [PubMed] and hand searches were performed to identify randomized controlled trials that were published between January 2008 to April 2020 which investigated and compared various outcomes between zirconia and titanium dental implants. Outcomes included assessment of marginal bone loss and aesthetics using spectrophotometric measurements. Meta-analysis was performed to estimate the above parameters among various studies. RESULTS: A total of 58 articles were screened for titles and abstracts. Subsequently 8 articles were selected for data extraction and evaluation. Zirconia implants were investigated and compared to titanium implants for marginal bone loss [MBL]. Customized zirconia and titanium abutments seated over implants were analyzed for aesthetic outcomes using spectrophotometric method using CIE-Lab measurements. Meta-analysis estimated that zirconia implants exhibited marginal bone loss reduction of 0.179mm (95% CI, 0.02 to 0.33) and -0.242mm (95% CI, -4.026 to 3.542) in aesthetic measurements than titanium implants. CONCLUSIONS: No heterogeneity was observed among studies analyzed for marginal bone loss and significant differences were noticed between two groups. Noticeable heterogeneity was observed among studies assessing aesthetics using spectrophotometry and CIE-Lab measurements and results revealed no many significant differences between the two groups.

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