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Clinical Evaluation Of Dental Implants Stability Placed In Healed Bony Sites Following Over-drilling Compared To Conventional-Drilling Protocol

2017-08-16 16:08:21 | BioPortfolio

Summary

Clinical Evaluation Of Dental Implants Stability Placed In Healed Bony Sites Following Over-drilling Compared To Conventional-Drilling Protocol

Description

- Statement of the problem:

peri-implant bone is affected by excessive mechanical stress, the mechanism of bone formation is reduced and the bone resorption is increased, leading to MBL. Isidor F. 2006, Warreth A, 009 A drilling sequence using a drill that is smaller than the implant diameter has been applied as a way to obtain enough initial stability.Bilhan H,2010 However, the implant can be extremely compressed or exceed the torque, which can be higher than the elastic limit of bone when a drill that is smaller than the implant diameter is used. This may affect the bone surrounding the implant and may also lead to a micro fracture.

Frost mentioned that alveolar bone density is changed by micro deformation due to modification of the physical condition. Bone resorption and fibrous tissue production progress if the micro deformation rate is higher than 3,000 micro strain (με). Also, continuous bone replacement occurs while woven bone appears. Wolff J.1986 Bone tissue adapts to the change of stress while minimizing its weight and transforming its structure. Frost HM,1989 The bone formation mechanism is inhibited and the bone resorption mechanism is enhanced if excessive mechanical stress is applied to alveolar bone during implantation, resulting in the progression of marginal bone loss (MBL). Isidor F.2006 , Warreth A,2009-

Rationale for carrying out the trial:

Success and survival rate of an implant are directly associated with primary stability. Friberg B,et al 1991 Primary stability is achieved with initial rigid fixation of implants during the surgery and considered necessary for a successful osseointegration. Sennerby L,et al 1992, Rodrigo D,et al 2010 There are two different processes of bone formation at implant sites; contact and distance osteogenesis. Contact osteogenesis infers new bone formation in direct contact with the implant surface. Distance osteogenesis is the new bone formation on the surfaces of the parent bone and occurs when primary stability is absent at implant site. Davies JE.et al 2003, Sivolella S,et al2012

When there is a gap between the implant surface and bone, a clot will fill the space and will be replaced by a provisional connective matrix that will act as scaffold for formation of woven bone. Berglundh T,et al,2003 , Rossi F,2012 Our study will evaluate the effect of oversized drilling on implant success and secondary stability

Study Design

Conditions

Crestal Bone Resorption

Intervention

implant site over drilling protocol

Status

Not yet recruiting

Source

Cairo University

Results (where available)

View Results

Links

Published on BioPortfolio: 2017-08-16T16:08:21-0400

Clinical Trials [1735 Associated Clinical Trials listed on BioPortfolio]

Low Speed Drilling Versus Conventional Drilling Technique on Crestal Bone Level in Maxilla.(Group A ) A Randomized Controlled Clinical Trial

20 patients were selected requiring implant placement and divided randomly into two groups (10 in each group) - for the study group, starter drill is used to locate the point of insert...

Low Speed Drilling Versus Conventional Drilling Technique on Crestal Bone Level in Maxilla.(Group C ) A Randomized Controlled Clinical Trial

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Influence of Superstructure Material on Crestal Bone Resorption and Esthetic Outcome of Dental Implants

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The Influence of Mucosal Tissue Thickness on Soft and Hard Tissue Changes Around Implants

Crestal bone and soft tissue stability around implants is an important issue in implant dentistry. Initial vertical mucosal tissue thickness was shown to be one of the factors having impac...

Clinical and Radiographic Evaluation of Crestal Bone Loss Around Implant With or Without Platform Switching Design

Implants have become the preferred method of single tooth replacement these days, patients receiving implant treatments not only expect restoration of masticatory function, they also expec...

PubMed Articles [11077 Associated PubMed Articles listed on BioPortfolio]

Clinical Considerations of Adapted Drilling Protocol by Bone Quality Perception.

To evaluate insertion torque value (ITV) and marginal bone loss (MBL) of an implant system after a clinically perceived bone quality-adapted drilling.

Slow drilling speeds for single-drill implant bed preparation. Experimental in vitro study.

To evaluate the real-time bone temperature changes during the preparation of the implant bed with a single-drill protocol with different drill designs and different slow drilling speeds in artificial ...

Sinus Membrane Elevation by the Crestal Approach Using a Novel Drilling System.

The purpose of this study was to evaluate the clinical outcomes of patients undergoing sinus membrane elevation by a minimally invasive crestal approach using a novel drilling system.

Comparison of peri-implant bone loss between conventional drilling with irrigation versus low-speed drilling without irrigation.

To compare the technique of high speed drilling with irrigation and low speed drilling without irrigation in order to evaluate the success rate and peri-implant bone loss at 12 months of follow-up.

Accuracy and Reproducibility of Radiographic Images for Assessing Crestal Bone Height of Implants Using the Precision Implant X-ray Locator (PIXRL) Device.

Assessment of crestal bone levels around implants is essential to monitor success and health. This is best accomplished with intraoral radiographs exposed at 90 degrees to the long axis of the implant...

Medical and Biotech [MESH] Definitions

Guided BONE TRANSPLANTATION of the MAXILLARY SINUS surface with a BONE SUBSTITUTE grafting. It increases the bone volume at the site of the DENTAL IMPLANT and helps stabilize it.

The continuous turnover of bone matrix and mineral that involves first, an increase in resorption (osteoclastic activity) and later, reactive bone formation (osteoblastic activity). The process of bone remodeling takes place in the adult skeleton at discrete foci. The process ensures the mechanical integrity of the skeleton throughout life and plays an important role in calcium homeostasis. An imbalance in the regulation of bone remodeling's two contrasting events, bone resorption and bone formation, results in many of the metabolic bone diseases, such as OSTEOPOROSIS.

Agents that inhibit BONE RESORPTION and/or favor BONE MINERALIZATION and BONE REGENERATION. They are used to heal BONE FRACTURES and to treat METABOLIC BONE DISEASES.

Insertion of an implant into the bone of the mandible or maxilla. The implant has an exposed head which protrudes through the mucosa and is a prosthodontic abutment.

A large multinuclear cell associated with the BONE RESORPTION. An odontoclast, also called cementoclast, is cytomorphologically the same as an osteoclast and is involved in CEMENTUM resorption.

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