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1.
J Maxillofac Oral Surg ; 20(4): 581-585, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34776688

ABSTRACT

Maxillary hypoplasia is often evident in cleft patients due to impaired growth and dense scarring from previous cleft surgeries. For these patients, treatment scenario has taken many turns over ages, evolved from orthognathic correction to distraction osteogenesis, with mixed prognosis and outcome depending on severity of the case and other several factors. We are reporting a case of 24-year-old female with maxillary hypoplasia secondary to bilateral cleft lip and palate with hypoplastic prolabium, who has been treated with two patient-specific implants in bilateral maxillary region for facial profile enhancement.

2.
Ann Afr Med ; 18(1): 1-6, 2019.
Article in English | MEDLINE | ID: mdl-30729925

ABSTRACT

Background: The overall success of dental implants depends on the crestal bone support around the implants. During the initial years of dental implant placement, the bone loss around the implants determines the success rate of treatment. Platform switching (PLS) concept preserves the crestal bone loss, and this approach should be applied clinically for the overall success of dental implants. Purpose: The purpose of this study is to discuss the literature dealing with the concept of PLS concept and preservation of marginal bone, the mechanism by which it contributes to maintenance of marginal bone, its clinical applications, advantages, and disadvantages, to assess its survival rates. Materials and Methods: PubMed and Google Scholar search was done to find out the studies involving PLS concept from 2005 to 2017. Data were analyzed using SPSS statistical software. Results: Literature search revealed studies involving concepts of PLS, comparison of platform-switched and nonplatform-switched implants, case reports on PLS, and studies with histological and finite element analyses regarding PLS. Conclusion: PLS helps preserve crestal bone around the implants, and this concept should be followed when clinical situations in implant placement permit.


RésuméContexte: Le succès global des implants dentaires dépend du support osseux crestal autour des implants. Au cours des premières années de la pose des implants dentaires, la perte osseuse autour des implants détermine le taux de réussite du traitement. Concept de commutation de plate-forme (PLS) préserve la perte osseuse crestale, et cette approche devrait être appliquée cliniquement pour le succès global des implants dentaires. But: le Le but de cette étude est de discuter de la littérature traitant du concept de concept PLS et de la préservation de l'os marginal, du mécanisme par lequel il contribue au maintien de l'os marginal, ses applications cliniques, ses avantages et ses inconvénients, pour évaluer ses taux de survie. Matériels et méthodes: La recherche PubMed et Google Scholar a été effectuée pour trouver les études impliquant le concept PLS de 2005 à 2017. Les données ont été analysées à l'aide du logiciel statistique SPSS. Résultats: La recherche documentaire a révélé des études impliquant des concepts de PLS, la comparaison de implants à commutation de plates-formes et à commutation de plates-formes, rapports de cas sur PLS et études avec analyses histologiques et d'éléments finis concernant PLS. Conclusion: PLS aide à préserver l'os crestal autour des implants, et ce concept doit être suivi lorsque des situations cliniques dans l'implant permis de placement.


Subject(s)
Alveolar Bone Loss/prevention & control , Alveolar Process/anatomy & histology , Dental Abutments/adverse effects , Dental Implantation/methods , Dental Implants/adverse effects , Adult , Alveolar Bone Loss/etiology , Alveolar Process/diagnostic imaging , Alveolar Process/pathology , Bone Density/physiology , Dental Implant-Abutment Design , Dental Prosthesis Design , Humans , Prosthesis Fitting
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