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Effect of Incisor Retraction on the Lips in Patients with Excessive Proclination

MB Halkati , Shweta S Nidavani1 , MB Halkati2 , Shkeel Ahmed Galagali3

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Indian Journal of Dental Education 12(2):p 41-44, April-June 2019. | DOI: DOI: https://dx.doi.org/10.21088/ijde.0974.6099.12219.1

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Shweta S Nidavani, MB Halkati, Shkeel Ahmed Galagali. Effect of Incisor Retraction on the Lips in Patients with Excessive Proclination. Indian J Dent Educ. 2019;12(2):41-44.

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Abstract

Aim: To study the effect of incisor retraction on the lip position in patients with excessive proclination. Materials and Method: pre and post treatment cephalograms 40 adult patients. (26 female and 14 male) pre and post treatment cephalograms of these patients were analysed to compare the effect retraction of incisors on the lip. Results: An average retraction of maxillary incisor of 3.5 ± 3.3 mm caused the upper lip to retract by 5.3 ± 1.9 mm.; An average retraction of maxillary incisor of 3.5 ± 3.3 of mm. caused the lower lip to retract by 1.9 ± 1.7 mm. Conclusion: Strong correlation existed between upper incisor retraction and lower lip retraction (r- value 0.0479) and lower incisor retraction and lower lip retraction (r-value 0.0641) Ratio of upper incisor retraction to upper lip retraction is 1.5:1. Ratio of upper incisor retraction to lower lip retraction is 1.7:1. Ratio of lower incisor retraction to lower lip retraction is 1.2:1. Ratio of lower incisor proclination to lower lip protrusion is 0.4:1. For 1 mm Upper incisor retraction caused the in the labiomental fold angle increase by 4.10.

Keywords: Incisor retraction; Proclination; Cephalograms.

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Cite this article

Shweta S Nidavani, MB Halkati, Shkeel Ahmed Galagali. Effect of Incisor Retraction on the Lips in Patients with Excessive Proclination. Indian J Dent Educ. 2019;12(2):41-44.

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DOI: DOI: https://dx.doi.org/10.21088/ijde.0974.6099.12219.1

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