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Preservação alveolar em zonas anteriores: que material de enxerto ósseo usar?
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| PPG_29786 | 609.95 KB | Adobe PDF |
Advisor(s)
Abstract(s)
A reabsorção da crista alveolar é um fenómeno biológico que ocorre depois de uma extração dentária e não pode ser prevenido. Este trabalho pretende rever as alterações dimensionais da crista alveolar, horizontais e verticais, que estão associadas à extração dentária. As vantagens da preservação alveolar são grandes, entre as quais, a redução da probabilidade de intervenções cirúrgicas mais complicadas, a longo prazo. Foi realizada uma pesquisa em português e inglês nas bases de dados Pubmed e B-on até Março de 2018 usando os termos “preservação alveolar”, “zona estética”, “zona anterior” e “enxertos ósseos”; “alveolar preservation”, “esthetic zone”, “anterior zone” e “bone grafts”. Os critérios de inclusão na pesquisa foram bibliografias publicadas entre 1998 e 2018. Artigos adicionais foram considerados, por serem relevantes, no seguimento da revisão preliminar da primeira pesquisa. A literatura sugere que os métodos de preservação alveolar estão disponíveis para minimizar as alterações morfológicas da crista alveolar pós-extracão, dado que nenhum protocolo impede, por completo, as alterações morfológicas. Enúmeros materiais de enxerto, como autoenxertos, aloenxertos, xenoenxertos e materiais aloplásticos são usados para preservação alveolar. Segundo os resultados dos estudos, a divisão dos materiais de enxerto pode ser feita quanto à reabsorção em mineralizados e não-mineralizados, devido às diferenças na formação de osso vital e existência de material residual. No entanto, não há evidência científica que mostre superioridade de algum material. A preservação alveolar deve ser realizada pós-extração, salvo exceções e quando não consta no plano de tratamento a colocação de implante nos 2-3 meses seguintes à extração. Avanços na engenharia tecidular poderão fornecer biomateriais com uma maior e previsível formação óssea.
The reabsorption of the alveolar ridge bone is a biological phenomenon that occurs after a dental extraction and it can't be prevented. This paper reviews alveolar ridge dimensional changes, horizontal and vertical, that are associated with tooth extraction. The advantages of alveolar preservation are great, including the reduction of the probability of more complicated surgeries, at long-term. A search was performed in portuguese and english in the database Pubmed and B-on until March 2018 using the terms “preservação alveolar”, “zona estética”, “zona anterior” and “enxertos ósseos”; “alveolar preservation”, “esthetic zone”, “anterior zone” and “bone grafts”. The criteria chosen in the research included bibliographies published between 1998 and 2018. Additional articles were considered to be relevant, following the preliminary review of the first research. The literature suggests alveolar preservation methods are available to minimize the morphological alveolar alterations following extraction, since no protocol prevents the full morphological changes. Many graft materials such as autografts, allografts, xenografts and alloplastic materials are used for alveolar preservation. According to the results of the studies, the division of the graft materials can be made regarding the role of reabsorption in mineralized and non-mineralized, due to differences in vital bone formation and existence of residual material. However, there is no scientific evidence that shows the superiority of some material. The alveolar preservation should be held following extraction, unless exceptions and when the placement of implants in the 2-3 months after extraction aren´t in the treatment plan. Tissue engineering advances can provide biomaterials with increased and predictable bone formation.
The reabsorption of the alveolar ridge bone is a biological phenomenon that occurs after a dental extraction and it can't be prevented. This paper reviews alveolar ridge dimensional changes, horizontal and vertical, that are associated with tooth extraction. The advantages of alveolar preservation are great, including the reduction of the probability of more complicated surgeries, at long-term. A search was performed in portuguese and english in the database Pubmed and B-on until March 2018 using the terms “preservação alveolar”, “zona estética”, “zona anterior” and “enxertos ósseos”; “alveolar preservation”, “esthetic zone”, “anterior zone” and “bone grafts”. The criteria chosen in the research included bibliographies published between 1998 and 2018. Additional articles were considered to be relevant, following the preliminary review of the first research. The literature suggests alveolar preservation methods are available to minimize the morphological alveolar alterations following extraction, since no protocol prevents the full morphological changes. Many graft materials such as autografts, allografts, xenografts and alloplastic materials are used for alveolar preservation. According to the results of the studies, the division of the graft materials can be made regarding the role of reabsorption in mineralized and non-mineralized, due to differences in vital bone formation and existence of residual material. However, there is no scientific evidence that shows the superiority of some material. The alveolar preservation should be held following extraction, unless exceptions and when the placement of implants in the 2-3 months after extraction aren´t in the treatment plan. Tissue engineering advances can provide biomaterials with increased and predictable bone formation.
Description
Keywords
Preservação alveolar Zona estética Zona anterior Enxertos ósseos Alveolar preservation Esthetic zone Anterior zone Bone grafts