COMPARISON OF SECOND MOLAR ERUPTION PATTERNS IN SKELETAL CLASS I AND CLASS II MALOCCLUSIONS

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KHOJASTEHPOUR L.; SALEHI PARISA; SHAHIDI SHOLEH

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Journal: JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES) Year:2008 | Volume:9 | Issue:3 (20) Page(s): 263-270

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Title

COMPARISON OF SECOND MOLAR ERUPTION PATTERNS IN SKELETAL CLASS I AND CLASS II MALOCCLUSIONS

Author(s)

KHOJASTEHPOUR L. | SALEHI PARISA | SHAHIDI SHOLEH | Issue Writer Certificate

Keywords

MALOCCLUSIONQ2

ERUPTIONQ2

MOLARQ2

SKELETALQ2

CLASS IQ2

CLASS IIQ2

Abstract

Statement of Problem: The timing and pattern of ERUPTION of second MOLARs are clinically important factors and might be related to different types of craniofacial SKELETAL morphology and MALOCCLUSION.Purpose: In this cross sectional study the eruptive positions of the second MOLARs in CLASS I and CLASS II MALOCCLUSION were studied and compared.Materials and Method: Pretreatment records including clinical examinations, and radiographs of 99 orthodontic patients, (56 girls and 43 boys with the mean age of 10.2 years) were evaluated. Approximately 25.3 % of the patients had SKELETAL CLASS I, 35.3% had SKELETAL maxillary CLASS II, and 39.3% had SKELETAL mandibular CLASS II MALOCCLUSIONs. The eruptive position in relation to a reference line, as well as, the developmental stages of the patients’ second MOLARs, and the dental ages were recorded using theirs panoramic radiographs. Data were analyzed using ANOVA and Chisquare tests.Results: The mean values of dental and chronologic ages of the subjects were similar. The distribution of various developmental stages in each MALOCCLUSION group was similar. There was an association between the type of SKELETAL MALOCCLUSION and dental developmental stage of the second MOLARs (p <0.0001). The eruptive position of second MOLARs was more occlusal in the maxilla of patients with maxillary CLASS II and more apical in the mandible of patients with mandibular CLASS II (p <0.0001).Conclusion: According to the present study, the maxillary second MOLARs erupt earlier in maxillary CLASS II MALOCCLUSION patients, and the mandibular second MOLARs erupt later in mandibular CLASS II MALOCCLUSION compared to other MALOCCLUSIONs.

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APA: Copy

KHOJASTEHPOUR, L., SALEHI, PARISA, & SHAHIDI, SHOLEH. (2008). COMPARISON OF SECOND MOLAR ERUPTION PATTERNS IN SKELETAL CLASS I AND CLASS II MALOCCLUSIONS. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), 9(3 (20)), 263-270. SID. https://sid.ir/paper/108680/en

Vancouver: Copy

KHOJASTEHPOUR L., SALEHI PARISA, SHAHIDI SHOLEH. COMPARISON OF SECOND MOLAR ERUPTION PATTERNS IN SKELETAL CLASS I AND CLASS II MALOCCLUSIONS. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2008;9(3 (20)):263-270. Available from: https://sid.ir/paper/108680/en

IEEE: Copy

L. KHOJASTEHPOUR, PARISA SALEHI, and SHOLEH SHAHIDI, “COMPARISON OF SECOND MOLAR ERUPTION PATTERNS IN SKELETAL CLASS I AND CLASS II MALOCCLUSIONS,” JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), vol. 9, no. 3 (20), pp. 263–270, 2008, [Online]. Available: https://sid.ir/paper/108680/en

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