Influence of Inflammatory Reactions Vs. Occlusal Loading On Peri-Implant Marginal Bone Level

Plaque accumulation on abutments or implant surfaces induces an inflammatory reaction in the gingiva/alveolar mucosa just as around teeth. The longevity of oral implants can be jeopardized by either peri-implantitis and/or an occlusal overload. In the partially edentulous patient in whom pockets around teeth act as a reservoir for the colonization of the pockets around implants, the risk for inflammatory reactions of the peri-implant soft tissues seems especially more plausible than in the fully edentulous patient. This is especially true for implants with a very rough surface (e.g., plasma-sprayed), because of the positive relationship between surface roughness and supra- as well as subgingival plaque formation. Several medium-term (from 5 to 10 years) clinical studies support this hypothesis, through the observation of ongoing bone loss and subsequent decreasing success/survival percentages. Occlusal overload increases the risk for microfractures at the implant-bone interface in two-stage implants, which can result in significant marginal bone loss and even failure. There is ample evidence that occlusal factors are related to marginal angular defects around two-stage implants.

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

International Journal of Implant Dentistry ◽

10.1186/s40729-020-00217-7 ◽

2020 ◽

Vol 6 (1) ◽

Cited By ~ 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

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A split-mouth clinico-radiographic comparative study for evaluation of crestal bone and peri-implant soft tissues in immediately loaded implants with and without platelet-rich plasma bioactivation

Journal of Dental Research Dental Clinics Dental Prospects ◽

10.15171/joddd.2019.018 ◽

2019 ◽

Vol 13 (2) ◽

pp. 117-122

Author(s):

Vande Aaditee Vishnu ◽

Pronob Kumar Sanyal ◽

Shivsagar Tewary ◽

Kumar Nilesh ◽

Roy Malvika Suresh Prasad ◽

...

Keyword(s):

Bone Loss ◽

Soft Tissues ◽

Platelet Rich Plasma ◽

Control Site ◽

Marginal Bone Loss ◽

Probing Depth ◽

Tissue Healing ◽

Single Piece ◽

Edentulous Patients ◽

The Right

Background. This study evaluated the viability of platelet-rich plasma for enhancement of osseous and associated soft tissue healing around single-piece implants, subjected to immediate loading and to compare it with a control site not treated with PRP. Methods. Twenty completely edentulous patients were selected and 2 one-piece implants with O-ball head were placed for mandibular overdenture. The implant on the right side was treated with PRP whereas the left side implant served as a control. All the cases were immediately loaded and marginal bone loss, probing depth, percussion, implant mobility and peri-implantitis were assessed and compared at 3, 6, 9 and 12 months. Results. Overall analysis of the results showed less marginal bone loss, probing depth, percussion, implant mobility and periimplantitis around implants treated with PRP; however, the results were insignificant statistically. Conclusion. PRP can be used as a viable treatment adjunct in immediately loaded one-piece implants.

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

International Journal of Implant Dentistry ◽

10.1186/s40729-021-00392-1 ◽

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.

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Reproducibility and Detection Threshold of Peri-Implant Diagnostics

Advances in Dental Research ◽

10.1177/08959374930070021001 ◽

1993 ◽

Vol 7 (2) ◽

pp. 191-195 ◽

Cited By ~ 15

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.

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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

Dental Journal of Advance Studies ◽

10.1055/s-0040-1709094 ◽

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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Assessment of Peri-Implant Soft Tissues Conditions around Short and Ultra-Short Implant-Supported Single Crowns: A 3-Year Retrospective Study on Periodontally Healthy Patients and Patients with a History of Periodontal Disease

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17249354 ◽

2020 ◽

Vol 17 (24) ◽

pp. 9354

Author(s):

Giorgio Lombardo ◽

Annarita Signoriello ◽

Mauro Marincola ◽

Pier Francesco Nocini

Keyword(s):

Retrospective Study ◽

Bone Loss ◽

Periodontal Disease ◽

Soft Tissues ◽

Implant Survival ◽

Marginal Bone Loss ◽

Implant Complications ◽

Short Implants ◽

History Of ◽

Single Crowns

The aim of this retrospective study was to evaluate implant survival, marginal bone loss and peri-implant complications in 326 short and ultra-short implants. Implants were placed in the maxillary and mandibular posterior regions of 140 patients with (PP) and without (NPP) a history of periodontal disease. Clinical and radiographic examinations were performed at 3-year recall appointments. The 8.0, 6.0 and 5.0 mm-length implants placed in PP and NPP were respectively 43.75% and 38.46%, 35.10% and 34.19%, 21.15% and 27.35%; 325 implants (one early failure) were rehabilitated with single crowns in 139 patients. Overall implant survival after 3 years of follow-up was 97.55%, 98.08% and 96.61% for PP and NPP (p = 0.46). Crestal bone level variations were not statistically different among PP and NPP; 15.41% of implants presented signs of mucositis, 14.71% and 16.67% in PP and NPP (p = 0.64). Setting the threshold for bone loss at 2 mm after 36 months, peri-implantitis prevalence was 2.2%, 1.96% and 2.63% in PP and NPP (p = 0.7). Overall implant success was 82.39%, 83.33% and 80.7% for PP and NPP (p = 0.55). Short-term outcomes suggest that short and ultra-short locking-taper implants can successfully be restored with single crowns in the posterior jaws both in PP and NPP.

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Trends of Implant Placement in Relation to Crestal Bone Level in a Private Dental Institute

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11ispl3.2944 ◽

2020 ◽

Vol 11 (SPL3) ◽

pp. 358-362

Author(s):

Rinieshah Nair R Baskran ◽

Rajendra Prabhu Abhinav ◽

Murugaiyan Arun ◽

Balaji Ganesh S

Keyword(s):

Bone Loss ◽

Dental Implants ◽

P Value ◽

Marginal Bone Loss ◽

Oral Rehabilitation ◽

Implant Placement ◽

Significant Difference ◽

Bone Level ◽

Natural Dentition ◽

Bone Height

Dental implants provide a strong foundation for fixed or removable prosthetic teeth that are made to match natural dentition. It has become an ideal method of oral rehabilitation after missing natural dentition has been recognised as a reliable tool for dental reconstruction and aesthetics. Marginal bone loss is characterized by a reduction in bone loss is characterized by a reduction in bone level both vertically and horizontally. The levels at which dental implants are placed include sub-crystal, equi-crestal, and supra-crestal. The crestal levels affect bone height significantly. Failure to do so will lead to peri-implant bone loss which will affect the implant function and ultimately implant failure. A retrospective study was conducted based on a university setting. 615 patients with 1141 implant sites were reviewed from June 2019 to March 2020. Excel tabulation and SPSS analysis were done for data analysis. There was a statistically significant difference between the variables that included tooth region, crestal relation and site (jaw)—[p-value<0.05] The most common crestal relation of implant placement is equi-crestal implant placement. The assessment of trends of implant placement in relation to crestal bone level shows that equi-crestal implant is the most preferred crestal relation of implant placement in Saveetha Dental College.

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The Association of the One-Abutment at One-Time Concept with Marginal Bone Loss around the SLA and Platform Switch and Conical Abutment Implants

Journal of Clinical Medicine ◽

10.3390/jcm11010074 ◽

2021 ◽

Vol 11 (1) ◽

pp. 74

Author(s):

Nasreen Hamudi ◽

Eitan Barnea ◽

Evgeny Weinberg ◽

Amir Laviv ◽

Eitan Mijiritsky ◽

...

Keyword(s):

Bone Loss ◽

Test Group ◽

Mucosal Barrier ◽

Control Group ◽

X Rays ◽

Marginal Bone Loss ◽

Bone Level ◽

The Difference ◽

The One

Objectives: Repeated abutment disconnection/reconnection may compromise the mucosal barrier and result in crestal bone level changes. The clinical significance of this phenomenon is not yet clear, as most studies on this topic are short-term. Therefore, the aim of the present study was to evaluate the influence of abutment disconnections and reconnections on peri-implant marginal bone loss over a medium-term follow-up period. Material and methods: Twenty-one patients (6 men and 15 women) with a mean age 66.23 ± 9.35 year at the time of implant placement were included. All patients who received two adjacent nonsubmerged implants were randomly assigned into one of the two groups: definitive multiunit abutments (DEFs) connected to the implant that were not removed (test group) or healing abutments (HEAs) placed at surgery, which were disconnected and reconnected 3–5 times during the prosthetic phase (control group). Peri-implant marginal bone levels (MBL) were measured through periapical X-rays images acquired immediately after the surgery (baseline), at 4–7 months immediately after prosthetic delivery, and at 1-year and 3-year follow-up visits. Results: No implant was lost or presented bone loss of more than 1.9 mm during the 3-year follow-up; thus, the survival and success rate was 100%. Peri-implant mucositis was noticed in 38.1% DEFs and 41.9% of HEAs at the 3-year follow-up assessment. At the end of 3 years, the MBL was −0.35 ± 0.69 mm for participants in the DEFs group and −0.57 ± 0.80 mm for the HEAs group, with significant statistical difference between groups. Conclusions: Immediate connection of the multiunit abutments reduced bone loss in comparison with 3–5 disconnections noted in the healing abutments 3 years after prosthetic delivery. However, the difference between the groups was minimal; thus, the clinical relevance of those results is doubtful.

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