Evaluation of skeletal maturity using maxillary canine, mandibular second and third molar calcification stages

Trakiniené, Giedrė; Smailienė, Dalia; Kučiauskienė, Ainė

doi:10.1093/ejo/cjv051

Cited by 24 publications

(15 citation statements)

References 14 publications

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“…Interestingly, third molars are unique teeth, as their eruption time may vary from 17 to 24 years, depending on the ethnographic region and race 1 . Recently, discussions regarding the influence of the third molars on dentition have become highly important from several aspects, including their development, formation and retention and their effect on teeth crowding 2 – 4 . Consequently, understanding of the regulatory mechanisms of third molar development variability is of great clinical importance for making decisions on the timing of third molar surgical removal, autologous transplantation, orthodontic treatment planning and chronological age estimation for medico-legal purposes 5 .…”

Section: Introductionmentioning

confidence: 99%

Impact of genetics on third molar agenesis

Trakiniené

Šidlauskas

Andriuškevičiūtė

et al. 2018

Sci Rep

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The purpose of this investigation was to determine the impact of heritability on third molar agenesis in twins. The study sample consisted of 284 same sex twins (172 monozygotic and 112 dizygotic), whose mean ages were 19.7 ± 4.3 and 18.9 ± 4.8 years, respectively. The monozygotic group consisted of 36.3% males and 63.7% females, while the dizygotic group consisted of 50.1% males and 49.9% females. The zygosity of the twins was established using 15 specific DNA markers. The prevalence of third molar agenesis in monozygotic twins was 19.6%, which was higher than in the dizygotic twins group (15.50%) (p = 0.004). In both groups, third molar agenesis was more frequent in the maxilla than in the mandible (p = 0.000). Agenesis of the maxillary third molars was mostly affected by additive genetic factors (62–63%), with the common environment and the specific environment accounting for up to 25% and 13%, respectively. In contrast, agenesis of the lower third molars was associated with a higher additive genetic determination (81–83%), with the specific environment accounting for 17% to 19%. The study’s conclusion is that the formation of the third molars follicle is strongly controlled by additive genetic factors.

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Section: Introductionmentioning

confidence: 99%

Impact of genetics on third molar agenesis

Trakiniené

Šidlauskas

Andriuškevičiūtė

et al. 2018

Sci Rep

Self Cite

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“…Different parameters are used to describe pubertal growth in children. Some of the parameters that are used in determining pubertal growth spurt by assessing growth and development in adolescence are chronological age, pubic hair appearance in males and females, menstruation onset in females, radiographic evaluation of bone maturation stages and evaluation of tooth calcification stages [8,16].…”

Section: Introductionmentioning

confidence: 99%

The relationship between frontal sinus morphology and skeletal maturation

2018

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“…This may a have a negative impact on the proper development of dental occlusion, as well as other consequences, such as an imbalance in the stomatognathic system. 1,23 This study found a high prevalence of agenesis of the third molar (20.71%) in the studied population. This figure is high in comparison to other studies conducted in the population of Venezuela, where agenesis of this tooth was observed in 8.7% of the total number of radiographies studied.…”

Section: Resultsmentioning

confidence: 58%

Agenesis of third molars and its association with other dental anomalies in a Peruvian population.

Miranda-Medina

2020

J Oral Res

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Objective: The purpose of the present study was to determine the association between agenesis of the third molar and other dental anomalies. Materials and Methods: This was an observational, retrospective, cross-sectional and analytical study. The sample included 367 patients, aged 14 to 20 years old with adequate digital panoramic radiography. Patients with syndromes, who had extractions of any third molar and with orthodontic treatment prior to panoramic radiographic examination, were excluded. For data collection, each radiograph was recorded with patient code, sex and age. Results: The prevalence of third molar agenesis was 20.71%. Subsequently, patients were divided into two groups, with agenesis of at least one third molar and a control group; the prevalence of other dental anomalies was 48.69% of third molar agenesis group and 21.31% in the control group. A highly significant association was found between the presence of third molar agenesis and the presence of other tooth abnomalities (p= 0.0000; contingency coefficient = 0.2425).The most frequent dental anomaly was dental inclusion with 20.44% of the population studied; followed by the agenesis of other teeth (7.90%) and finally the presence of supernumerary teeth (1.63%). Conclusions: This study demonstrates that there is an association between third molar agenesis and other dental abnormalities, with a higher prevalence of dental abnormalities in patients with third molar agenesis.

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Evaluation of skeletal maturity using maxillary canine, mandibular second and third molar calcification stages

Abstract: The calcification stages of UC, LM2, and LM3 as indicators of skeletal maturity could be clinically used with caution, until this method is verified with a larger sample group.

Cited by 24 publications

References 14 publications

Impact of genetics on third molar agenesis

Impact of genetics on third molar agenesis

The relationship between frontal sinus morphology and skeletal maturation

Agenesis of third molars and its association with other dental anomalies in a Peruvian population.

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