ridge augmentation
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Cureus ◽  
2022 ◽  
Author(s):  
Anilkumar R ◽  
Rekha R Koduganti ◽  
Tata Sai Lakshmi Harika ◽  
Haripriya Rajaram

Author(s):  
David T Wu ◽  
Shahram Raoof ◽  
Jessica M Latimer ◽  
Thomas T. Nguyen

Partial extraction therapy (PET) is a collective concept encompassing a group of surgical techniques including socket shield, root membrane, proximal shield, pontic shield and root submergence. PET utilizes the patient’s own root structure to maintain blood supply derived from the periodontal ligament complex in order to preserve the periodontium and peri-implant tissues during restorative and implant therapy. This review aims to summarize current knowledge regarding PET techniques and present a comprehensive evaluation of human clinical studies in the literature. Two independent reviewers conducted electronic and manual searches until January 1 st , 2021 in the following electronic bibliographic databases: PubMed, EMBASE, and Dentistry & Oral Sciences Source. Grey literature was searched to identify additional candidates for potential inclusion. Articles were screened by a group of 4 reviewers using the Covidence software and synthesized. Systematic search of the literature yielded 5,714 results. 64 articles were selected for full-text assessment, of which, 42 eligible studies were included in the review. 12 studies were added to the synthesis after manual search of the reference lists. A total of 54 studies were examined in this review. In sum, PET techniques offer several clinical advantages: 1) preservation of buccal bone post-extraction and limitation of alveolar ridge resorption 2) mitigation of the need for invasive ridge augmentation procedures 3) soft tissue dimensional stability and high esthetic outcomes. Further randomized clinical studies with larger sample sizes are needed to improve understanding of the long-term clinical outcomes of PET.


2021 ◽  
Vol 8 (6) ◽  
pp. 22-30
Author(s):  
Vincenzo Foti ◽  
Davide Savio ◽  
Roberto Rossi

The aim of this case series is to introduce the One-Time Cortical Lamina Technique, a simplification of the F.I.R.S.T. (Fibrinogen-Induced Regeneration Sealing Technique) in cases where only horizontal augmentation is needed. The indications for this technique are ASA2 and ASA1 anxious patients. Pre-requisites for this surgical technique are: a good amount of keratinized tissue, sufficient alveolar ridge width for placement of implants, thickness of vestibular bone at CBCT planning less than 1 mm with risk of threads exposure. Five patients with horizontal deficiencies were selected to test the efficacy of this approach. The defects were augmented using a porcine cortical bone lamina in combination with collagenated porcine bone mixed with fibrin sealant. The cortical lamina was placed only buccal to the implants and stabilized with fibrin sealant, without pins or screws. Upon completion of the implant surgery, healing abutments were connected to the implants and the soft tissue sutured around them. The healing was uneventful in all cases. Six months after surgery impressions for final restorations were taken and screwed crowns delivered. The new volume had hard consistency and the follow-up CBCT measured an average of 4.17 mm of horizontal bone augmentation. One to three years of follow up demonstrated the maintenance of vestibular volume, hard consistency and clinical stability. Intraoral X-rays showed no marginal bone loss. An advantage of this technique could be the one stage surgery that creates a stable environment for regeneration from day one.


Author(s):  
Sergio Charifker Ribeiro Martins

The use of guided bone regeneration (GBR) has been gaining more and more ground in the field of implant dentistry, due to higher confidence in the materials available. As this is a highly versatile technique, the same biological basis-cell exclusion–can be used to treat any type of defect. Vertical augmentation in the alveolar ridge is currently treated by the GBR principle, predictably and with high success rates, using a rigid framework associated with a mix of hydroxyapatite and autogenous bone. Lyophilized bovine bone is the hydroxyapatite of choice for this condition because it allows bone volume to be maintained over a long period of time, due to its slow resorption. Another important char-acteristic found in hydroxyapatite is its porosity since it allows – in addition to graft neo-vascularization–a greater ease of cell adhesion when compared to crystalline materials. Thus, this clinical case presents the use (for the first time in the literature) of a vertical augmentation of an atrophic ridge using Criteria Lumina Bone Porous® as the hydroxy-apatite of choice for association with autogenous bone particles.


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