A THEORETICAL ITERATION FOR PREDICTING THE FEASIBILITY FOR IMMEDIATE FUNCTIONAL DENTAL IMPLANT LOADING

2020 ◽  
Author(s):  
Dennis Flanagan ◽  
Alessandro Fisher BS ◽  
Carmen Ciardiello ◽  
Vito Moreno ◽  
Alen Uvalic ◽  
...  
Keyword(s):  
Bone Density ◽  
Dental Implant ◽  
Cortical Thickness ◽  
Load Capacity ◽  
Functional Load ◽  
Implant Crown ◽  
Technical Issues ◽  
Implant Loading ◽  
Influential Parameters ◽  
Functional Loading

When planning an implant supported restoration the dentist is faced with the surgical and prosthetic technical issues as well as the patient’s expectations. Many patients wish an immediate solution to an edentulous condition. This is especially may be true in the esthetic zone. The extent of the zone is determined by the patient. The dentist may consider when it is feasible to load the supporting implants with definitive or provisional prosthetics. For the work herein, consideration of many parameters were theoretically assessed for inclusion: bone density, cortical thickness, seating torque, parafunction, bite load capacity, number of implants under load, implant/crown ratio, implant diameter and length. After assessment, the most influential parameters were selected. An iteration, using patient age, implant diameter, bite load capacity and cortical thickness, is now presented to aid the implant dentist in determining the feasibility for immediate functional loading of a just placed dental implant in a healed site. Extensive testing is required to develop this concept. According to this iteration, most immediate functional loaded implants would fail. A future refined and definitive formula may enable the clinician to safely immediately functional load an implant with a definitive prosthesis.

scholarly journals Peri-Implant Behavior of Tissue Level Dental Implants with a Convergent Neck

2021 ◽  
Vol 18 (10) ◽  
pp. 5232
Author(s):  
Rubén Agustín-Panadero ◽  
Irene Bermúdez-Mulet ◽  
Lucía Fernández-Estevan ◽  
María Fernanda Solá-Ruíz ◽  
Rocío Marco-Pitarch ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Statistical Analysis ◽  
Bone Loss ◽  
Tissue Level ◽  
Functional Load ◽  
Implant Placement ◽  
Group I ◽  
Bone Level ◽  
Single Crowns ◽  
Functional Loading

Introduction: The aim of this retrospective study was to analyze the radiographic peri-implant bone loss of bone level implants and tissue level implants with a convergent neck in screw-retained single crowns and in screw-retained fixed partial prostheses, after two years of functional loading. Materials and methods: The sample was divided into two groups according to their type: Group I: supracrestal implants with convergent transmucosal neck; Group II: crestal implants. In each group we distinguish two subgroups according to the type of prosthetic restoration: single crowns and a three-piece fixed partial prosthesis on two implants. To quantify bone loss, parallelized periapical radiographs were analyzed at the time of implant placement and after two years of functional load. Results: A total of 120 implants were placed in 53 patients. After statistical analysis it was observed that for each type of implant bone loss was 0.97 ± 0.91 mm for bone level and 0.31 ± 0.48 mm for tissue level. No significant differences were found regarding the type of prosthesis and the location (maxilla or mandible) of the implants. Conclusions: Tissue level implants with a convergent transepithelial neck exhibit less peri-implant bone loss than bone level implants regardless of the type of prosthesis.

scholarly journals SAT-LB088 Assessing Metacarpal Cortical Thickness as a Tool to Evaluate Bone Density Compared to DXA in Osteogenesis Imperfecta

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Nadia Merchant ◽  
Nishitha Pillai ◽  
Chase Miller ◽  
Trevor Hadley ◽  
Lefkothea Karaviti ◽  
...  
Keyword(s):  
Bone Density ◽  
Osteogenesis Imperfecta ◽  
Cortical Thickness

Evaluation of cortical thickness and bone density by roentgen microdensitometry in growing males and females

1996 ◽  
Vol 155 (5) ◽  
pp. 377-382 ◽  
Author(s):  
Nicoletta Zamberlan ◽  
Giorgio Radetti ◽  
Claudio Paganini ◽  
Davide Gatti ◽  
Maurizio Rossini ◽  
...  
Keyword(s):  
Bone Density ◽  
Cortical Thickness ◽  
Males And Females

scholarly journals Relationship between Cortical Bone Thickness and Cancellous Bone Density at Dental Implant Sites in the Jawbone

Diagnostics ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 710
Author(s):  
Shiuan-Hui Wang ◽  
Yen-Wen Shen ◽  
Lih-Jyh Fuh ◽  
Shin-Lei Peng ◽  
Ming-Tzu Tsai ◽  
...  
Keyword(s):  
Bone Density ◽  
Cortical Bone ◽  
Dental Implant ◽  
Cancellous Bone ◽  
Bone Thickness ◽  
Anterior Maxilla ◽  
Cortical Bone Thickness ◽  
Posterior Maxilla ◽  
Dental Implant Surgery ◽  
Anterior Mandible

Dental implant surgery is a common treatment for missing teeth. Its survival rate is considerably affected by host bone quality and quantity, which is often assessed prior to surgery through dental cone-beam computed tomography (CBCT). Dental CBCT was used in this study to evaluate dental implant sites for (1) differences in and (2) correlations between cancellous bone density and cortical bone thickness among four regions of the jawbone. In total, 315 dental implant sites (39 in the anterior mandible, 42 in the anterior maxilla, 107 in the posterior mandible, and 127 in the posterior maxilla) were identified in dental CBCT images from 128 patients. All CBCT images were loaded into Mimics 15.0 to measure cancellous bone density (unit: grayscale value (GV) and cortical bone thickness (unit: mm)). Differences among the four regions of the jawbone were evaluated using one-way analysis of variance and Scheffe’s posttest. Pearson coefficients for correlations between cancellous bone density and cortical bone thickness were also calculated for the four jawbone regions. The results revealed that the mean cancellous bone density was highest in the anterior mandible (722 ± 227 GV), followed by the anterior maxilla (542 ± 208 GV), posterior mandible (535 ± 206 GV), and posterior maxilla (388 ± 206 GV). Cortical bone thickness was highest in the posterior mandible (1.15 ± 0.42 mm), followed by the anterior mandible (1.01 ± 0.32 mm), anterior maxilla (0.89 ± 0.26 mm), and posterior maxilla (0.72 ± 0.19 mm). In the whole jawbone, a weak correlation (r = 0.133, p = 0.041) was detected between cancellous bone density and cortical bone thickness. Furthermore, except for the anterior maxilla (r = 0.306, p = 0.048), no correlation between the two bone parameters was observed (all p > 0.05). Cancellous bone density and cortical bone thickness varies by implant site in the four regions of the jawbone. The cortical and cancellous bone of a jawbone dental implant site should be evaluated individually before surgery.

scholarly journals Utility of the Cortical Thickness of the Distal Radius as a Predictor of Distal-Radius Bone Density

2013 ◽  
Vol 2 (1) ◽  
pp. 11-5 ◽  
Author(s):  
Sascha Rausch ◽  
Kajetan Klos ◽  
Florian Gras ◽  
Hristo Kostov Skulev ◽  
Albrecht Popp ◽  
...  
Keyword(s):  
Bone Density ◽  
Distal Radius ◽  
Cortical Thickness

Immediate Functional Load of Mandibular Implant Overdentures: A Surgical and Prosthodontic Rationale of 2 Implant Modalities

2004 ◽  
Vol 30 (5) ◽  
pp. 297-306 ◽  
Author(s):  
Jaime L. Lozada ◽  
Aladdin J. Al-Ardah ◽  
Kitichai Rungcharassaeng ◽  
Joseph Y. K. Kan ◽  
Alejandro Kleinman
Keyword(s):  
Dental Implants ◽  
Dental Implant ◽  
Success Rates ◽  
Functional Load ◽  
Healing Period ◽  
Immediate Function

Abstract Classic guidelines in osseointegration for root-form dental implants include a long healing period, during which functional load should be avoided. However, the long healing period might impose an intolerable situation on some patients, especially in the completely edentulous situation. Subperiosteal dental implant guidelines demonstrate that the implant upon insertion can be put into immediate function and be restored with the final prosthesis soon after surgery. Studies on immediately functional loaded implant-supported prostheses in patients who are completely edentulous have been reported, exhibiting high success rates comparable with conventionally loaded implants. This article describes the surgical and prosthodontic procedure for the immediately functional loaded mandibular implant overdentures in 2 different dental implant modalities, as well as its clinical rationale.

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