Effect of Extraction of Upper First Premolars on Facial Vertical Dimension (FVD) in Class II Div I Patients

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Shirali Sakineh; Aragh Bidi Kashani Mehdi

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF ISFAHAN DENTAL SCHOOL Year:2019 | Volume:15 | Issue:3 Page(s): 237-245

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

366

Download:

Cites:

Information Journal Paper

Title

Effect of Extraction of Upper First Premolars on Facial Vertical Dimension (FVD) in Class II Div I Patients

Author(s)

Shirali Sakineh | Aragh Bidi Kashani Mehdi | Issue Writer Certificate

Keywords

Class II malocclusionQ1

Tooth extractionQ1

Vertical dimensionQ1

Abstract

Introduction: Extraction of the upper first premolars and mesial movement of molars result in mandibular counterclockwise rotation and reduced facial Vertical dimension. On the other hand, molar extrusion during the orthodontic treatment changes facial Vertical dimension. Therefore, it is possible to avoid vertical changes of the face by maintaining the vertical position of posterior teeth. This study was designed to evaluate changes in the Vertical dimension of the face in class II div I patients treated by extraction of the upper first premolars. Materials & Methods: This cross-sectional study was conducted on 20 patients, with a mean age of 17. 8 years, who were selected from a private office. The subjects had Class II malocclusion and normal vertical growth. To decreasing the effect of growth on the results, we selected subjects >15 years of age. As a part of their orthodontic treatment their upper first premolars had been extracted. The lateral cephalometric radiographs of the patients were digitized. Image analyses were conducted using View box 3. 1. 1 software program and data was analyzed with SPSS 20. Paired t-test was used to compare each variable before and after treatment (α = 0. 05). Results: In this study, there was no statically significant differences in skeletal variables. However, dental variables of U1-NA (mm), U1-NA, U1-FH, and overjet exhibited significant decreases (p value < 0. 05). There was no significant differences in lower incisor variables. U6-palatal P, interincisal angle, U 1-palatal P exhibited significant increases. Conclusion: The results of this trial showed that treatment of class II div I through extraction of upper first premolars results in molar extrusion and in a decrease in upper incisor protrusion with no changes in the facial Vertical dimension.

Cites

No record.

References

Vertical skeletal changes after extraction and nonextraction treatment in matched class I patients identified by a discriminant analysis: cephalometric appraisal and Procrustes superimposition

Cite

APA: Copy

Shirali, Sakineh, & Aragh Bidi Kashani, Mehdi. (2019). Effect of Extraction of Upper First Premolars on Facial Vertical Dimension (FVD) in Class II Div I Patients. JOURNAL OF ISFAHAN DENTAL SCHOOL, 15(3 ), 237-245. SID. https://sid.ir/paper/126563/en

Vancouver: Copy

Shirali Sakineh, Aragh Bidi Kashani Mehdi. Effect of Extraction of Upper First Premolars on Facial Vertical Dimension (FVD) in Class II Div I Patients. JOURNAL OF ISFAHAN DENTAL SCHOOL[Internet]. 2019;15(3 ):237-245. Available from: https://sid.ir/paper/126563/en

IEEE: Copy

Sakineh Shirali, and Mehdi Aragh Bidi Kashani, “Effect of Extraction of Upper First Premolars on Facial Vertical Dimension (FVD) in Class II Div I Patients,” JOURNAL OF ISFAHAN DENTAL SCHOOL, vol. 15, no. 3 , pp. 237–245, 2019, [Online]. Available: https://sid.ir/paper/126563/en

Related Journal Papers