Ester Manzanera1, Paula Llorca1, David Manzanera1, Verónica García-Sanz1, Vicente Sada2, Vanessa Paredes-Gallardo3. 1. Department of Orthodontics, Dentistry and Medicine Faculty, University of Valencia, C/Gasco Oliag nº1, 46010, Valencia, Spain. 2. Private Practice, 26 San Fermín Street, 31003, Pamplona, Navarra, Spain. 3. Department of Orthodontics, Dentistry and Medicine Faculty, University of Valencia, C/Gasco Oliag nº1, 46010, Valencia, Spain. vanessa.paredes@uv.es.
Abstract
OBJECTIVES: To examine the dimensions (width, length, and height) of the maxillary tuberosity (MT) and their correlations with age and sex, and to identify different anatomical types for adequate positioning of miniscrews in this area. METHODS: The study enrolled 39 patients attending the University of Valencia. The patients comprised 21 males and 18 females with a mean age of 39.7 ± 8.4 years. The dimensions of all 78 MTs were measured on cone beam computed tomography (CBCT) images using Invivo Dental 5 software. RESULTS: The intraobserver and interobserver errors were good for all measurements. A total of 858 MT measurements were taken. The widths were greater in men than in women, with significant differences. The MT dimensions showed correlations with patient age, whereby older patients presented with greater widths and lengths, but reduced heights. Three different anatomical types were detected according to patient age. CONCLUSIONS: The dimensions (width, length, and height) of the MT vary according to patient age and sex. The MT dimensions conform to particular anatomical types, which should be taken into account when placing miniscrews in this region.
OBJECTIVES: To examine the dimensions (width, length, and height) of the maxillary tuberosity (MT) and their correlations with age and sex, and to identify different anatomical types for adequate positioning of miniscrews in this area. METHODS: The study enrolled 39 patients attending the University of Valencia. The patients comprised 21 males and 18 females with a mean age of 39.7 ± 8.4 years. The dimensions of all 78 MTs were measured on cone beam computed tomography (CBCT) images using Invivo Dental 5 software. RESULTS: The intraobserver and interobserver errors were good for all measurements. A total of 858 MT measurements were taken. The widths were greater in men than in women, with significant differences. The MT dimensions showed correlations with patient age, whereby older patients presented with greater widths and lengths, but reduced heights. Three different anatomical types were detected according to patient age. CONCLUSIONS: The dimensions (width, length, and height) of the MT vary according to patient age and sex. The MT dimensions conform to particular anatomical types, which should be taken into account when placing miniscrews in this region.
Entities:
Keywords:
Bone thickness; CBCT; Maxillary tuberosity; Miniscrew
Authors: David Farnsworth; P Emile Rossouw; Richard F Ceen; Peter H Buschang Journal: Am J Orthod Dentofacial Orthop Date: 2011-04 Impact factor: 2.650
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