TOMOGRAPHIC DIMENSIONS FOR THE INSTALLATION OF RAPID MAXILLARY EXPANSION MINI-IMPLANTS IN DIFFERENT AGE GROUPS

Cardozo-Muñoz A.K.; Carruitero M.J. · Journal of Oral Research (2023) · DOI: 10.17126/joralres.2023.025

Resumen

Objective: The purpose of the research was to compare the dimensions of the upper jaw between different age groups for the installation of mini-implants for rapid maxillary expansion. Materials and Methods: The study was descriptive, retroprospective and observational. Cone beam computed tomography was used for the evaluation of 30 patients between 7 and 56 years of age, divided into three groups, ten up to 14 years, ten from 15 to 30 years, and ten from 31 years and older. The premolar and molar regions were selected for the measurement of the maxilla in the coronal plane, both bone and sof t tissue. To compare the measurements, the Kruskal Wallis and Mann-Whitney U tests were used. Results: No statistically significant dif ferences were found between the groups. The thicknesses of the bone tissue decreased from the first premolar to the second molar from 9.48 +/-3.71 mm to 5.40 +/-2.80 mm respectively, while the sof t tissue thicknesses were more homogeneous with measurements of 0.56 +/-0.74 mm to 2.76 +/-2.42 mm. Conclusions: The dimensions of the bone and sof t tissue of the upper jaw, evaluated vertically for the installation of mini-implants, were similar in all the age groups studied, with larger dimensions in men than in women at the premolar level. The dimensions of the maxilla for the palatal miniimplants were close to 9 mm in bone tissue and 3 mm of sof t tissue at the level of premolars and 5 mm in hard tissue with 1 mm of sof t tissue at the level of molars.

Instituciones: Universidad Privada Antenor Orrego; Universidad Católica Santo Toribio de Mogrovejo