Abstract

ABSTRACTA Clinico-Radiological Study was conducted to establish a set relation between crest of residual alveolar ridge and neutral zone so that a uniform pattern could be followed for teeth setting. Thirty healthy edentulous patients with class – I ridge relation and who had not undergone any major oral surgical procedure was included in this study. Patients were divided into two groups, 1, who were edentulous from six months to two year and group 2, who were edentulous from two or more years. Fifteen patients were in each group. Results showed that in group 1 patients, neutral zone lied lingual to or on crest of alveolar ridge and in group 2 patients, neutral zone shifted to buccal side. Therefore, by studying the pattern of shift of neutral zone to buccal side we should come out with a reasonable plan for placing our teeth looking at duration of edentulousness.

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