The third permanent molars and their influence on the dentoalveolar arches

Arsenina O.I.; Shishkin K.M.; Shishkin M.K.; Popova N.V.

doi:https://doi.org/10.17116/rosstomat20169233-40

Arsenina O.I.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

Shishkin K.M.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

Shishkin M.K.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

Popova N.V.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

The third permanent molars and their influence on the dentoalveolar arches

Authors:

Arsenina O.I., Shishkin K.M., Shishkin M.K., Popova N.V.

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Journal: Russian Journal of Stomatology. 2016;9(2): 33‑40

DOI: 10.17116/rosstomat20169233-40

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Arsenina OI, Shishkin KM, Shishkin MK, Popova NV. The third permanent molars and their influence on the dentoalveolar arches. Russian Journal of Stomatology. 2016;9(2):33‑40. (In Russ.)
https://doi.org/10.17116/rosstomat20169233-40

Подписка 2026 Российская стоматология (Russian Journal of Stomatology)

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Abstract:

Using the PubMed search strings for the efficient retrieval of keywords «third molars, review» as per 20.07.2014 has yielded 629 publications dated from 1973 till 2014. The influence of the third permanent molars on the dentoalveolar arches remains in the focus of attention of many researchers. The objective of the present study was to elucidate the influence of the third permanent molars on the dentoalveolar arches. Material and methods. We analyzed the photographs and X-ray images obtained from 88 patients in the course of the orthodontic correction and during the retention period in whom the formation of the third permanent molars was completed. We registered changes that developed in the dentoalveolar arches during this time. The methods of logical analysis were employed. Results. In the case of lack of space, third permanent molars transmit the force generated in the course of formation of their roots and eruption onto the anteriorly located teeth. This force may cause bone resorption in the anteriorly located teeth as well as their displacement and/or that of the third molars. The magnitude of the displacement is a function of both the resulting force acting on the teeth and its direction. Conclusion. The occlusal force exerts an influence on the teeth location. Difficult eruption of the wisdom teeth may substantially increase this force and lead, in the case of occlusal interference between the eyeteeth, to the deformation of the mandibular dental arch in the region of the eyeteeth. The immature teeth occupy in the alveolar process the optimal position for the current anatomical and functional state. The extraction of the immature third molars prior to the onset of mineralization of their crown is minimally injurious.

Keywords:

the third permanent molars

dentoalveolar arches

preventive tooth extraction

Authors:

Arsenina O.I.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

Shishkin K.M.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

Shishkin M.K.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

Popova N.V.

Central Research Institute of Stomatology and Maxillofacial Surgery, Russian Ministry of Health, «Ortodont» Clinic, Samara

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