Background: Estimation of the mesio-distal width of permanent maxillary canines (PMCs) is a critical part of mixed dentition space analysis. The aim of this pilot study is to find a specific prediction equation for the estimation of the mesio-distal width of PMCs depending on the width of permanent maxillary and mandibular central incisors (PMMCIs) in a Kurdish population.
Methods: A hundred study casts were collected. The mesio-distal widths of the PMMCIs and PMCs were measured by digital caliper. Linear regression tests were applied to find the prediction equation using the sum width of PMMCIs as predictors.
Results: The mean age of the subjects was 17.2 ± 2.39 years old. Statistically significant differences in the mesio-distal widths of PMMCIs and PMCs were found between males and females ( = 0.0001). Furthermore, statistically significant correlations were identified between the widths of PMMCIs and PMCs in both males (r = 0.633, = 0.0001) and females (r = 0.717, = 0.0001). Likewise, the mesio-distal width of PMMCIs was found to be a significant predictor of the width of PMCs in both males (R2 = 0.403, = 0.0001) and females (R2 = 5.14, = 0.0001). For the first time, regression equations were developed for a Kurdish population and can be useful as a part of a mixed dentition space analysis in Kurdish children.
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http://dx.doi.org/10.3390/children7080092 | DOI Listing |
Radiol Case Rep
March 2025
Department of Pediatric Dentistry, Faculty of Dental Medicine, Mohammed V University In Rabat, Morocco.
Teeth, either erupted or impacted, that exceed the normal count are known as supernumerary teeth. They can appear unilaterally or bilaterally, singly or in multiples, and may be located anywhere in both dental arches. Multiple permanent impacted supernumerary teeth are uncommon and are often associated to syndromes but can be idiopathic.
View Article and Find Full Text PDFBackground: Tooth wear is an important mechanism for reducing dental dimensions and, consequently, dental crowding. The objective of this cohort study was to examine the relation of tooth wear, adjusted for covariates (age, tooth loss, arch perimeter and intercanine width), on tertiary crowding in Amazon Indigenous populations.
Methods: A sample of 40 Indigenous people in permanent dentition at T0 (baseline) and after 13 years (T1) were evaluated.
J Forensic Odontostomatol
December 2024
Department of Oral Medicine and Radiology, Army College of Dental Sciences.
Objectives: The study aims to evaluate the pulp-to-tooth area ratio in permanent maxillary central incisors, lateral incisors, and canines for age estimation using three-dimensional cone beam computed tomography images.
Methods: Hundred cone-beam computed tomography (CBCT) images of patients aged between 12-70 years were retrospectively studied using NNT Viewer software version 13. Pulpal and teeth area were evaluated with the "area tool" in the acquired images in all three planes, and the pulp-to-tooth area ratio (PTR) was calculated with the measurements obtained.
Am J Orthod Dentofacial Orthop
January 2025
Department of Orthodontics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic; Department of Dentistry, First Faculty of Medicine, Charles University and the General University Hospital, Prague, Czech Republic. Electronic address:
Introduction: The primary aim of this study was to assess the amount and long-term stability of orthodontically created bone in patients with agenesis of maxillary lateral incisors after canine distalization. The secondary aim was to explore the impact of patient age on the process of alveolar bone resorption.
Methods: A group of patients with agenesis of the maxillary permanent lateral incisor was examined at 4 time points: the beginning of orthodontic treatment (T1, n = 80), the end of treatment (T2, n = 80), 2-5 years after treatment (T3, n = 79), and 12-15 years after treatment (T4, n = 32).
Cureus
November 2024
Conservative Dentistry, Universiti Sains Malaysia, Kota Bharu, MYS.
Dental fluorosis (DF) is a condition affecting tooth enamel that occurs during the development of permanent teeth, resulting from excessive fluoride consumption. Based on the severity, the tooth surface exhibits discoloration or structural anomalies. The range of colors varies from mild discoloration to severe dark brown lesions.
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