RESUMO
OBJECTIVE: This study evaluates the effects of 8 years of insulinlike growth factor-I therapy on tooth development in patients with growth hormone insensitivity syndrome. METHODS: Forty-nine panoramic radiographs were evaluated from eight patients (six boys, two girls). Seven teeth in the mandibular left region were graded according to the Demirjian system. Radiographs were taken at the start of insulinlike growth factor-I therapy and were continued at approximately yearly intervals for 8 years. RESULTS: Three of six boys and one of two girls who began treatment with insulinlike growth factor-I at earlier ages experienced an increase in the rate of tooth development. One of six boys who began treatment with insulinlike growth factor-I at a later age had a slower rate of dental development. The patients had more rapid tooth maturation during the beginning of treatment. By the end of treatment, all patients had normal dental maturity for their age. CONCLUSIONS: Treatment of growth hormone insensitivity syndrome with insulinlike growth factor-I appears to lead to an increase in dental maturation, particularly in younger patients. After 8 years all patients had achieved normal dental development.