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Advisor(s)
Abstract(s)
Após a realização de uma exodontia, ocorrem alterações dimensionais no osso alveolar, relacionadas com a cicatrização alveolar que conduz, inevitavelmente, à reabsorção óssea. Estas alterações devem ser conhecidas e correctamente avaliadas antes do procedimento cirúrgico e sempre que se inicia qualquer reabilitação protética.
Um grupo de 12 pacientes foi submetido a avaliação pós-exodontia na Consulta de Cirurgia Oral da Clínica Dentária Universitária da Universidade Católica Portuguesa – Viseu. A cada paciente foi extraído, por técnica fechada, um dente maxilar da região compreendida entre o dente 15 e 25, com indicação de exodontia, com a condição de presença de dentes adjacentes. Foram definidos critérios de inclusão e exclusão, sendo que todos os pacientes que apresentavam doença sistémica ou factores locais que potenciassem a reabsorção óssea foram excluídos.
As alterações dimensionais ósseas verticais e horizontais foram avaliadas para cada grupo gengival, previamente definido, em três tempos distintos, no momento da exodontia (Baseline), 1 mês após a exodontia (T1) e 3 meses após a exodontia (T2).
Os resultados foram previsíveis, de acordo com a bibliografia consultada, verificando-se existiu perda óssea vertical e horizontal, ao longo dos três meses, sendo mais acentuda no grupo gengival G1 e menos acentuada no G3. Verificou-se a existência de correlação forte entre a perda de volume ósseo vertical e a espessura de gengiva aderida.
After tooth extraction, dimensional changes occur in the alveolar bone, related to cellular healing which inevitably leads to bone resorption. These changes must be known and properly evaluated before surgery and prosthetic rehabilitation. A group of 12 patients underwent post-extraction evaluation in Oral Surgery appointment at the University Dental Clinic of the Catholic University of Portugal in Viseu. In each patient was extracted, by flapless technique, a single maxillary tooth, with the requirement of the presence of adjacent teeth, located in region between the tooth 15 and 25, with indication for extraction. Inclusion and exclusion criteria were defined, and all patients with a systemic disease or local factors that enhance bone resorption were excluded. The vertical and horizontal bone dimensional changes were evaluated for each gingival group, previously set, in three different times, at the time of extraction (Baseline), 1 month after extraction (T1) and 3 months after extraction (T2). The results were predictable, according to the bibliography, checking whether there has vertical and horizontal bone loss, over the three months, were severe in the gingival group G1 and less pronounced in G3. It has been found that there is a strong correlation between loss of vertical bone volume and thickness of attached gingiva.
After tooth extraction, dimensional changes occur in the alveolar bone, related to cellular healing which inevitably leads to bone resorption. These changes must be known and properly evaluated before surgery and prosthetic rehabilitation. A group of 12 patients underwent post-extraction evaluation in Oral Surgery appointment at the University Dental Clinic of the Catholic University of Portugal in Viseu. In each patient was extracted, by flapless technique, a single maxillary tooth, with the requirement of the presence of adjacent teeth, located in region between the tooth 15 and 25, with indication for extraction. Inclusion and exclusion criteria were defined, and all patients with a systemic disease or local factors that enhance bone resorption were excluded. The vertical and horizontal bone dimensional changes were evaluated for each gingival group, previously set, in three different times, at the time of extraction (Baseline), 1 month after extraction (T1) and 3 months after extraction (T2). The results were predictable, according to the bibliography, checking whether there has vertical and horizontal bone loss, over the three months, were severe in the gingival group G1 and less pronounced in G3. It has been found that there is a strong correlation between loss of vertical bone volume and thickness of attached gingiva.
Description
Keywords
Reabsorção óssea Gengiva aderida Extracção dentária Alterações dimensionais Cicatrização alveolar Bone resorption Attached gingiva Dimensional changes Alveolar healing