SOFT TISSUE AND DENTOSKELETAL CHANGES IN CLASS II DIVISION 1 PATIENTS FOLLOWING EXTRACTION AND NON-EXTRACTION TREATMENT

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MOUMENI DANAEI SH.; SALEHI P.; ZARE E.; KESHAVARZ M.

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Paper Information

Journal: JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES) Year:2005 | Volume:6 | Issue:1-2 (10) Page(s): 128-138

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Title

SOFT TISSUE AND DENTOSKELETAL CHANGES IN CLASS II DIVISION 1 PATIENTS FOLLOWING EXTRACTION AND NON-EXTRACTION TREATMENT

Author(s)

MOUMENI DANAEI SH. | SALEHI P. | ZARE E. | KESHAVARZ M. | Issue Writer Certificate

Keywords

SOFT TISSUE CHANGEQ3

DENTOFACIAL CHANGEQ3

CLASS II DIVISION 1Q3

EXTRACTION VSQ3

NON-EXTRACTION TREATMENTQ3

Abstract

Statement of Problem: Treatment with or without extraction in CLASS II DIVISION 1 cases and their effect on the skeletodental and soft tissues in orthodontic treatment are in debate. Assessing the changes of hard and soft tissues in CLASS II DIVISION 1 patients can evaluate facial esthetics following different treatment plannings.Purpose: The purpose of this study was to compare the changes in subjects with class II division I malocclusions treated with and without extraction.Materials and Methods: Lateral cephalograms, photographic pictures, OPG radiographic and dental casts of 80 CLASS II DIVISION 1 patients aged 12-17 (mean age: 13.6±1.7), among 900 referred patients to private office, were evaluated at two stages: Pretreatment and post-treatment. 40 patients (20 males and 20 females) had premolar extraction and 40 patients (20 males and 20 females) were treated non-extraction using head gear. All of them were treated with classic edgewise (0.22) system. Eighteen hard and 10 soft tissue landmarks were identified on each cephalogram. All landmarks were identified and checked. Thirty-six skeletal, dental and soft tissue linear and angular measurements were derived. Pearson Rank correlation and Student t tests were used to analyze the data and compare the incremental changes between the groups before and after treatment. Absolute dimension within each sex and in extraction group were recorded before and after the treatments. Significance level for statistical comparisons was predetermined at p £ 0.05.Results: The results showed no difference in skeletal parameters. The finding of this study showed that after treatment, both upper and lower lips in extraction group were more retruded, the lower lip in non-extraction group showed no change, skeletal and soft tissue profiles in extraction and non-extraction subjects were similar.Conclusion: Our results showed that the soft and hard tissue convexity was the same in both groups. Although there was correlation between incisor retrusion and lip retrusion in extraction group, it didn’t reveal that upper and lower lip would be retruded as much as incisor.

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References

EVALUATION OF SOFT TISSUE PROFILE CHANGES AS A RESULT OF ORTHODONTIC TREATMENT

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APA: Copy

MOUMENI DANAEI, SH., SALEHI, P., ZARE, E., & KESHAVARZ, M.. (2005). SOFT TISSUE AND DENTOSKELETAL CHANGES IN CLASS II DIVISION 1 PATIENTS FOLLOWING EXTRACTION AND NON-EXTRACTION TREATMENT. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), 6(1-2 (10)), 128-138. SID. https://sid.ir/paper/108651/en

Vancouver: Copy

MOUMENI DANAEI SH., SALEHI P., ZARE E., KESHAVARZ M.. SOFT TISSUE AND DENTOSKELETAL CHANGES IN CLASS II DIVISION 1 PATIENTS FOLLOWING EXTRACTION AND NON-EXTRACTION TREATMENT. JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2005;6(1-2 (10)):128-138. Available from: https://sid.ir/paper/108651/en

IEEE: Copy

SH. MOUMENI DANAEI, P. SALEHI, E. ZARE, and M. KESHAVARZ, “SOFT TISSUE AND DENTOSKELETAL CHANGES IN CLASS II DIVISION 1 PATIENTS FOLLOWING EXTRACTION AND NON-EXTRACTION TREATMENT,” JOURNAL OF DENTISTRY (SHIRAZ UNIVERSITY OF MEDICAL SCIENCES), vol. 6, no. 1-2 (10), pp. 128–138, 2005, [Online]. Available: https://sid.ir/paper/108651/en

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