Impact of Early Loss of Lower First Permanent Molars on Third Molar Development and Position
Pesqui. bras. odontopediatria clín. integr
; 21: e0072, 2021. graf
Article
en En
| LILACS, BBO
| ID: biblio-1180858
Biblioteca responsable:
BR1264.1
ABSTRACT
ABSTRACT Objective:
To evaluate the effects of unilateral loss of the lower first permanent molar (L6) on the position and development of the lower third molar (L8). Material andMethods:
Fifty-four panoramic radiographs of subjects with unilateral loss of L6 were examined. The L8 on the side of the L6 loss was compared with the L8 in the hemiarch without L6 loss (contralateral). The effect of L6 loss on the positioning of L8 was examined in all the samples (n=54), whereas the effect on the development of the third molar was examined in 38 patients with L8 with incomplete root formation. The Signs statistical test was used to evaluate the comparison between loss and contralateral hemiarches.Results:
In 20 (37%) of 54 subjects, the L8 was better positioned in the hemiarch with loss of the lower first molar (p<0.001) compared with the control side. In the remaining 34 subjects, no difference was found. When only the L8 considered as impacted on the control side was examined (n=30), the cases with better positioning on the side with L6 loss increased to 66.6% (p<0.001).Conclusion:
The loss of lower first molars improves the position of the lower third molar during its active eruption, mainly when the lower third molar is impacted. However, L6 loss does not affect the root development of lower third molars.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
BBO
/
LILACS
Asunto principal:
Ortodoncia
/
Radiografía Panorámica
/
Pérdida de Diente
/
Diente Molar
/
Tercer Molar
Tipo de estudio:
Evaluation_studies
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Pesqui. bras. odontopediatria clín. integr
Asunto de la revista:
ODONTOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Brasil