PubMed Journals Articles About "Implant Site Over Drilling Protocol Crestal Bone Resorption" RSS

07:11 EDT 18th October 2018 | BioPortfolio

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Showing "implant site over drilling protocol Crestal Bone Resorption" PubMed Articles 1–25 of 12,000+

A Prospective Multicenter Study on Radiographic Crestal Bone Changes Around Dental Implants Placed at Crestal or Subcrestal Level: One-Year Findings.

To compare the peri-implant radiographic crestal bone changes around implants placed at the subcrestal or crestal level.

A cadaveric study of bone tissue temperature during pin site drilling utilizing fluoroptic thermography.

Using fluoroptic thermography, temperature was measured during pin site drilling of intact cortical human cadaver bone with a combination of one-step drilling, graduated drilling, and one-step drilling with irrigation of 5.0 mm Schanz pins.

Simplifying Zygomatic Implant Site Preparation Using Ultrasonic Navigation: A Technical Note.

Zygomatic implant site preparation could be considered a challenging procedure because of the use of a very long twist drill that could sometimes be difficult to control due to the need for drilling the malar bone on an oblique surface. Ultrasound was recently suggested to achieve better control, but the specific long tips required are not readily available, and the elongated tip also tends to reduce the efficacy. This technical note describes a proposal of a novel computer-aided technique to simplify the p...

The Crestal Window Approach for Sinus Floor Grafting With Delayed Implant Placement: A Preliminary Report.

This technical note addresses a method to increase the height of the posterior maxilla using a crestal window approach. This approach decreases the need for use of the lateral window approach and provides clinicians with an alternative with less morbidity. An island of crestal bone is mobilized superiorly and the site is grafted, resulting in 4 to 10 mm of vertical bone augmentation in a thin crest. A small case series is presented with implants integrated into these grafts.

Clinical Guidelines for Implant Treatment in Patients with Down Syndrome.

This study evaluated implant outcome in patients with Down syndrome (DSPs) and provides clinical guidelines to maximize treatment outcome. A total of 57 implants were placed in eight DSPs. During follow-up, implant survival was recorded and crestal bone level was evaluated when possible. After a mean follow-up time of 5 years, six patients with 45 implants were evaluated and an implant survival rate of 84.4% was recorded. A mean crestal bone loss of 1.7 mm (SD 0.9) was measured in three patients around 20 i...

A randomized controlled clinical trial assessing initial crestal bone remodeling of implants with a different surface roughness.

The aim of current split-mouth study is to compare crestal bone loss of hybrid with moderately rough implants in patients with a bar-supported mandibular overdenture.

Maxillary Sinus Membrane Elevation Using a Special Drilling System and Hydraulic Pressure: A 2-Year Prospective Cohort Study.

The purpose of this study was to evaluate clinical and radiologic outcomes using a newly developed device for maxillary sinus membrane elevation. Patients with a residual bone height of at least 3 mm were enrolled. Crestal sinus lift elevation and sinus graft were performed using the crestal approach sinus (CAS) kit. Graft was avoided if the residual bone crest was ≤ 2 mm less than the length of the planned implant. Outcome measures were implant and prosthesis failure, any biologic or technical complicati...

Immediate Implant Placement Into Fresh Extraction Sites Using Single-Drilling Bur and Two Loading Procedures: Follow-Up Results.

Modern clinical protocols in implantology aim at shortening the treatment time and reducing duration and discomfort of the surgical phase, while maintaining optimal treatment outcomes. The purpose of this study was to evaluate clinical outcomes of implants immediately placed in extraction sites, using a single drilling step for implant site preparation. One-hundred thirty-three patients (mean age 55.3 ± 12.7 [SD] years, range 20-83 years) were treated at 2 clinical centers. Two-hundred sixty-one implan...

Effect of drilling direction and depth on thermal necrosis during tibia drilling: An in vitro study.

Thermal necrosis is one of the main concerns in bone drillings. This study has been designed with the aim of improving the surgeons' knowledge on how to reduce thermal necrosis in tibia drilling with various depths and directions. A drilling machine was developed, which made the direct transfer of gas coolants into the drilling site during drilling possible. Results indicated that 2000 r/min is the most proper rotational speed for minimizing thermal necrosis. Changing the drilling direction from radial to ...

Peri-implant Bone Loss of Tissue-Level and Bone-Level Implants in the Esthetic Zone with Gingival Biotype Analysis.

The esthetic outcome of dental implants can be compromised when some degree of bone loss occurs around the implant. This may particularly affect the tissue-level (TL) design. Therefore, bone-level (BL) design implants may be preferable if a natural emergence profile is important. Notwithstanding the implant design, the gingival biotype has been identified as a crucial factor in the stability of crestal bone. The objective of this study was to investigate bone loss in patients with different gingival biotype...

A Review of the Impact of Implant Biomaterials on Osteocytes.

In lamellar bone, a network of highly oriented interconnected osteocytes is organized in concentric layers. Through their cellular processes contained within canaliculi, osteocytes are highly mechanosensitive and locally modulate bone remodeling. We review the recent developments demonstrating the significance of the osteocyte lacuno-canalicular network in bone maintenance around implant biomaterials. Drilling during implant site preparation triggers osteocyte apoptosis, the magnitude of which correlates wi...

Peri-implant Tissue Health and Bone Resorption in Patients with Immediately Loaded, Implant-Supported, Full-Arch Prostheses.

To evaluate plaque accumulation, peri-implant soft tissue inflammation, and bone resorption in patients with immediately loaded implants supporting fixed full-arch prostheses.

Clinical Outcome After 8 to 10 Years of Immediately Restored Single Implants Placed in Extraction Sockets and Healed Ridges.

Recent systematic reviews point to the scarcity of single implants followed up longer than 5 years, and the incidence of biologic/technical complications is underreported. This prospective follow-up study documents 8- to 10-year clinical outcomes of immediately restored single implants in extraction sockets (immediate implant treatment [IIT]) and healed bone (conventional implant treatment [CIT]). Patients received a single, chemically modified, moderately rough titanium implant and a provisional crown on t...

Decoronation followed by dental implants placement: fundamentals, applications and explanations.

Dental arches areas with teeth presenting dentoalveolar ankylosis and replacement root resorption can be considered as presenting normal bone, in full physiological remodeling process; and osseointegrated implants can be successfully placed. Bone remodeling will promote osseointegration, regardless of presenting ankylosis and/or replacement root resorption. After 1 to 10 years, all dental tissues will have been replaced by bone. The site, angulation and ideal positioning in the space to place the implant sh...

Computer-based automatic classification of trabecular bone pattern can assist radiographic bone quality assessment at dental implant site.

To develop and validate an automated classification method that determines the trabecular bone pattern at implant site based on 3D bone morphometric parameters derived from CBCT images.

Evaluation of a New Dental Implant Cervical Design in Comparison with a Conventional Design in an Experimental American Foxhound Model.

The aim of this study was to evaluate osseointegration and crestal bone height in implants with a triangular cervical design in comparison with a standard rounded cervical design. The control group consisted of 24 implants with a standard cervical design, and the test group of 24 implants with a triangular cervical design. The implants were inserted in healed bone in six American Foxhounds. Crestal bone height and tissue thickness in the cervical portion were measured after 12 weeks healing. Data analysis f...

Conventional drilling versus piezosurgery for implant site preparation: a meta-analysis.

The aim of this study was to evaluate the evidence of a correlation between the stability of dental implants placed by piezosurgery, compared with implants placed by conventional drilling. An electronic search in MEDLINE, SCOPUS and the Cochrane Library was undertaken until August 2016 and was supplemented by manual searches and by unpublished studies at OpenGray. Only randomized controlled clinical trials that reported implant site preparation with piezosurgery and with conventional drilling were considere...

Implant/Abutment Biomechanics and Material Selection for Predictable Results.

Change in crestal bone height and volume around endosseous dental implants is a complex issue involving interactions among many variables such as surgical approach, patient health, volume of hard and soft tissues, and implant configuration. Establishing and maintaining a soft-tissue seal around transmucosal abutments on bone-level implants or on the collar of one-stage tissue-level implants is paramount to maintaining crestal bone height, and failing to do so will result in apical migration of the soft tiss...

Are Intraoral Radiographs Accurate in Determining the Peri-implant Marginal Bone Level?

The primary objective of this study was to assess the accuracy of periapical radiographs in determining the peri-implant marginal bone level. The accuracy of the linear measurements on radiographs was considered as the absolute difference between the true, intraoperative or surgical marginal bone level measurements (direct bone measurements during surgical procedures) and the radiographic measured distances. The secondary aims were to identify the variables influencing the radiographic evaluation (arch: man...

Allogeneic Bone Block Volume Preservation in Ridge Augmentation for Implants.

Allogeneic bone blocks are commonly used for bone augmentation in implant dentistry. Allogeneic bone blocks have the advantage of containing growth factors and the original human scaffold. A major disadvantage is the risk of substantial graft volume decrease due to resorption. The purpose of this study was to evaluate whether corticocancellous allogeneic bone blocks can predictably maintain graft volume to allow implant placement and esthetic restoration. A total of 141 allogeneic bone blocks were placed in...

Biomechanics of Immediate Postextraction Implant Osseointegration.

The aim of this study was to gain insights into the biology and mechanics of immediate postextraction implant osseointegration. To mimic clinical practice, murine first molar extraction was followed by osteotomy site preparation, specifically in the palatal root socket. The osteotomy was positioned such that it removed periodontal ligament (PDL) only on the palatal aspect of the socket, leaving the buccal aspect undisturbed. This strategy created 2 distinct peri-implant environments: on the palatal aspect, ...

Implant rehabilitation of the edentulous jaws: Does tilting of posterior implants at an angle greater than 45° affect bone resorption and implant success?: A retrospective study.

This study aimed to (1) investigate the success of posterior implants tilted >45° when 4 immediately loaded implants were used to support full-arch prostheses, eliminating any distal cantilever and (2) examine the effect on marginal bone loss (MBL) of different combinations of anterior multi-unit abutment (MUA) angles and posterior implant tilting angles.

Thermal Changes During Guided Flapless Implant Site Preparation: A Comparative Study.

To compare intrabony thermal changes induced by two different protocols for guided implant surgery during the whole drilling procedure.

Maxillary Alveolar Ridge Atrophy Reconstructed With Autogenous Bone Graft Harvested From the Proximal Ulna.

Atrophy of the alveolar ridge requires bone grafting at the implant site for rehabilitation of the masticatory function with dental implants. Despite the advances in the development of bone substitutes, autogenous bone graft remains the "criterion standard" because of its osteogenic, osteoinductive, osteoconductive potential, and non-immunogenic properties. However, harvesting of autogenous bone is not exempt from donor site morbidity. In this context, the use of autogenous bone derived from the proximal ul...

A patient-specific haptic drilling simulator based on virtual reality for dental implant surgery.

In the dental implant surgery, there are inevitable risks due to the anatomically complex operation in the cranio-maxillofacial region. Therefore, there is a trend to use computer-aided technology to simulate the process of the implant surgery. In this study, we present a haptic simulator for trainees to study and rehearse the drilling performance of dental implant surgery.

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