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. 2024 Dec 10;16(4):1149-1160.
doi: 10.3390/pediatric16040097.

Prevalence and Symmetry of Positional Anomalies in Second Permanent Molars: Study of Romanian Patients

Rahela Tabita Moca  1 , Abel Emanuel Moca  2 , Mihai Juncar  2
Affiliations

Prevalence and Symmetry of Positional Anomalies in Second Permanent Molars: Study of Romanian Patients

Rahela Tabita Moca et al. Pediatr Rep. .

Abstract

Background/objectives: This study aimed to investigate the prevalence and characteristics of positional anomalies in second permanent molars among Romanian patients. These molars play a crucial role in occlusion but can exhibit positional issues such as tilting, rotation, infraocclusion, and impaction.

Methods: This retrospective study examined the digital models of 103 patients aged 12-40, which were obtained by using the Medit i500 intraoral scanner. Positional anomalies were categorized by tilting, rotation, infraocclusion, and impaction.

Results: The results showed a high prevalence of anomalies, particularly infraocclusion and buccal tilting in upper molars and oral tilting and mesio-buccal rotations in lower molars. The significant symmetry of anomalies within the same dental arch was noted. Gender and malocclusion type did not significantly influence anomaly frequency.

Conclusions: The findings emphasize the need for the vigilant monitoring of second permanent molars to maintain functional occlusion and suggest potential common etiological factors within dental arches. Despite this study's limitations, including sample size and retrospective design, this study underscores the clinical importance of the early detection and management of molar anomalies. Future research should expand on these findings, considering genetic and environmental influences on dental development.

Keywords: Romanian patients; positional anomalies; second permanent molars.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Positional changes in second permanent molars: (a) BT of tooth 1.7; (b) MBR of tooth 3.7.
Figure 2
Figure 2
Distribution of patients related to gender.
Figure 3
Figure 3
Distribution of patients related to malocclusion.
Figure 4
Figure 4
Distribution of patients related to positional anomalies at 1.7 and 2.7.
Figure 5
Figure 5
Distribution of patients related to positional anomalies at 3.7 and 4.7.
See this image and copyright information in PMC

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References

    1. Davies S. What is occlusion? Part 1. Br. Dent. J. 2024;36:447–452. doi: 10.1038/s41415-024-7173-6. - DOI - PubMed
    1. Didier H., Assandri F., Gaffuri F., Cavagnetto D., Abate A., Villanova M., Maiorana C. The Role of Dental Occlusion and Neuromuscular Behavior in Professional Ballet Dancers’ Performance: A Pilot Study. Healthcare. 2021;9:251. doi: 10.3390/healthcare9030251. - DOI - PMC - PubMed
    1. Manfredini D., Castroflorio T., Perinetti G., Guarda-Nardini L. Dental occlusion, body posture and temporomandibular disorders: Where we are now and where we are heading for. J. Oral Rehabil. 2012;39:463–471. doi: 10.1111/j.1365-2842.2012.02291.x. - DOI - PubMed
    1. Thomas D.C., Singer S.R., Markman S. Temporomandibular Disorders and Dental Occlusion: What Do We Know so Far? Dent. Clin. N. Am. 2023;67:299–308. doi: 10.1016/j.cden.2022.11.002. - DOI - PubMed
    1. Kalladka M., Young A., Thomas D., Heir G.M., Quek S.Y.P., Khan J. The relation of temporomandibular disorders and dental occlusion: A narrative review. Quintessence Int. 2022;53:450–459. - PubMed

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