Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups
2015
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Objective: To analyze radiographic predictors for lower third molar eruption among subjects with different anteroposterior skeletal relations and of different age groups. Materials and Methods: In total, 300 lower third molars were recorded on diagnostic digital orthopantomograms (DPTs) and lateral cephalograms (LCs). The radiographs were grouped according to sagittal intermaxillary angle (ANB), subject age, and level of lower third molar eruption. The DPT was used to analyze retromolar space, mesiodistal crown width, space/width ratio, third and second molar angulation (alpha, gamma), third molar inclination (beta), and gonion angle. The LC was used to determine ANB, angles of maxillar and mandibular prognathism (SNA, SNB), mandibular plane angle (SN/MP), and mandibular lengths. A logistic regression model was created using the statistically significant predictors. Results: The logistic regression analysis revealed a statistically significant impact of 6 angle and distance between gon...ion and gnathion (Go-On) on the level of lower third molar eruption (P lt .001 and P lt .015, respectively). The retromolar space was significantly increased in the adult subgroup for all skeletal classes. The lower third molar impaction rate was significantly higher in the adult subgroup with the Class II (62.3%) compared with Class III subjects (31.7%; P lt .013). Conclusion: The most favorable values of linear and angular predictors of mandibular third molar eruption were measured in Class III subjects. For valid estimation of mandibular third molar eruption, certain linear and angular measures (beta angle, Go-On), as well as the size of the retromolar space, need to be considered.
Ključne reči:
Lower third molar / Impaction / Radiographic predictorsIzvor:
Angle Orthodontist, 2015, 85, 4, 577-584Izdavač:
- E H Angle Education Research Foundation, Inc, Newton N
Finansiranje / projekti:
- Genetička kontrola i molekularni mehanizmi u malignim, inflamatornim i razvojnim patologijama orofacijalne regije (RS-MESTD-Basic Research (BR or ON)-175075)
DOI: 10.2319/062714-463.1
ISSN: 0003-3219
PubMed: 25244087
WoS: 000357242200006
Scopus: 2-s2.0-84937029613
Kolekcije
Institucija/grupa
Stomatološki fakultetTY - JOUR AU - Jakovljević, Aleksandar AU - Lazić, Emira AU - Soldatović, Ivan AU - Nedeljković, Nenad AU - Andrić, Miroslav PY - 2015 UR - https://smile.stomf.bg.ac.rs/handle/123456789/1967 AB - Objective: To analyze radiographic predictors for lower third molar eruption among subjects with different anteroposterior skeletal relations and of different age groups. Materials and Methods: In total, 300 lower third molars were recorded on diagnostic digital orthopantomograms (DPTs) and lateral cephalograms (LCs). The radiographs were grouped according to sagittal intermaxillary angle (ANB), subject age, and level of lower third molar eruption. The DPT was used to analyze retromolar space, mesiodistal crown width, space/width ratio, third and second molar angulation (alpha, gamma), third molar inclination (beta), and gonion angle. The LC was used to determine ANB, angles of maxillar and mandibular prognathism (SNA, SNB), mandibular plane angle (SN/MP), and mandibular lengths. A logistic regression model was created using the statistically significant predictors. Results: The logistic regression analysis revealed a statistically significant impact of 6 angle and distance between gonion and gnathion (Go-On) on the level of lower third molar eruption (P lt .001 and P lt .015, respectively). The retromolar space was significantly increased in the adult subgroup for all skeletal classes. The lower third molar impaction rate was significantly higher in the adult subgroup with the Class II (62.3%) compared with Class III subjects (31.7%; P lt .013). Conclusion: The most favorable values of linear and angular predictors of mandibular third molar eruption were measured in Class III subjects. For valid estimation of mandibular third molar eruption, certain linear and angular measures (beta angle, Go-On), as well as the size of the retromolar space, need to be considered. PB - E H Angle Education Research Foundation, Inc, Newton N T2 - Angle Orthodontist T1 - Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups VL - 85 IS - 4 SP - 577 EP - 584 DO - 10.2319/062714-463.1 ER -
@article{ author = "Jakovljević, Aleksandar and Lazić, Emira and Soldatović, Ivan and Nedeljković, Nenad and Andrić, Miroslav", year = "2015", abstract = "Objective: To analyze radiographic predictors for lower third molar eruption among subjects with different anteroposterior skeletal relations and of different age groups. Materials and Methods: In total, 300 lower third molars were recorded on diagnostic digital orthopantomograms (DPTs) and lateral cephalograms (LCs). The radiographs were grouped according to sagittal intermaxillary angle (ANB), subject age, and level of lower third molar eruption. The DPT was used to analyze retromolar space, mesiodistal crown width, space/width ratio, third and second molar angulation (alpha, gamma), third molar inclination (beta), and gonion angle. The LC was used to determine ANB, angles of maxillar and mandibular prognathism (SNA, SNB), mandibular plane angle (SN/MP), and mandibular lengths. A logistic regression model was created using the statistically significant predictors. Results: The logistic regression analysis revealed a statistically significant impact of 6 angle and distance between gonion and gnathion (Go-On) on the level of lower third molar eruption (P lt .001 and P lt .015, respectively). The retromolar space was significantly increased in the adult subgroup for all skeletal classes. The lower third molar impaction rate was significantly higher in the adult subgroup with the Class II (62.3%) compared with Class III subjects (31.7%; P lt .013). Conclusion: The most favorable values of linear and angular predictors of mandibular third molar eruption were measured in Class III subjects. For valid estimation of mandibular third molar eruption, certain linear and angular measures (beta angle, Go-On), as well as the size of the retromolar space, need to be considered.", publisher = "E H Angle Education Research Foundation, Inc, Newton N", journal = "Angle Orthodontist", title = "Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups", volume = "85", number = "4", pages = "577-584", doi = "10.2319/062714-463.1" }
Jakovljević, A., Lazić, E., Soldatović, I., Nedeljković, N.,& Andrić, M.. (2015). Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups. in Angle Orthodontist E H Angle Education Research Foundation, Inc, Newton N., 85(4), 577-584. https://doi.org/10.2319/062714-463.1
Jakovljević A, Lazić E, Soldatović I, Nedeljković N, Andrić M. Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups. in Angle Orthodontist. 2015;85(4):577-584. doi:10.2319/062714-463.1 .
Jakovljević, Aleksandar, Lazić, Emira, Soldatović, Ivan, Nedeljković, Nenad, Andrić, Miroslav, "Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups" in Angle Orthodontist, 85, no. 4 (2015):577-584, https://doi.org/10.2319/062714-463.1 . .