A Cephalometric Evaluation of Increase In Lip Dimensions During Growth
| Autor: | Kalyani Mallavarapu, S R K Reddy, Vijay P Jayade, P Revathi, Sudheer Kumar, K Naveen |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Journal of Indian Orthodontic Society, Vol 44, Iss 4, Pp 4-14 (2010) |
| ISSN: | 0974-9098 0301-5742 |
| Popis: | Objectives: To evaluate the linear changes in length and thickness of upper and lower lips in Indian male and female subjects during active growth and to compare the findings with previously reported studies on Caucasian population. Materials and Pre and post treatment cephalograms of young patients, who had undergone treatment in active methods: growing phase, were collected from different institutions. The sample comprised of sixty subjects (30 male and 30 female). The age at the start of treatment was in the range of 13 to 15 years for patients and 11 to 13 years for the female patients. The age ranged between 15 to 17 years the male patients and between 13 to 15 years for the females at the finish of treatment. The cephalograms were traced and lip measurements were carried out as described by Mamandras. Results: Males showed maximum maxillary lip length changes between 14 and 15 years of age whereas females showed maximum changes between 13 and 14 years of age. Both males and females showed maximum maxillary lip thickness changes between 13 and 14 years of age. Females showed gradual increase in mandibular lip length from 12 to 14 years of age whereas males showed increase in lip length from14 to 15 years of age. Females showed maximum increase in mandibular lip thickness between 13 and 14 years of age whereas males showed gradual increase in lip thickness from 14 years of age to 16 years. This study concluded that ethnic differences between Caucasian population and Indian population do exist in the lip measurements as well as growth of lips. Conclusion: Incisor retraction as well as intrusion should be planned keeping in mind variations in lip length and thickness measurements and effect of growth on these structures for both males and females. |
| Databáze: | OpenAIRE |
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