Gunaseelan, R (2011) The Long Term Stability and Histology of Anterior Maxillary Distraction Osteogenesis in Hypo-Plastic Maxillae in Cleft Lip & Palate Patients. Doctoral thesis, The Tamilnadu Dr.M.G.R. Medical University, Chennai.
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Abstract
This innovative technique of distraction of a scarred, operated cleft palate by means of segmental distraction has shown to be more stable than the classical methods of Le-Fort 1 distraction. The technique has no deleterious effects on speech when analyzed by speech language pathologists. This is a significant factor while considering surgical options in patients with pre-existing speech disorder or velo-pharyngeal dysfunction (VPD). Histology shows that there is a hyperplasia of soft tissue in the region of the regenerate and that distraction is possible even in scar tissue. The distracted regenerate bone was of adequate volume and quality to be able to have orthodontic realignment or support an osseo-integrated implant. The complications seen were minor and easily rectifiable. Patient adaptation and acceptance was good. However, patient’s attenders have to be alert enough to activate the appliance correctly and note any complication early enough. RECOMMENDATIONS: The technique should be reproducible in several centers to get a larger sample size and more extensive data collection and interpretation. The technique itself looks promising and also cost effective and hence should be taken up by centers which have limited resources. A larger sample size will also help better speech assessment. Though the findings of normal mucosa were confirmed by routine histology, further studies, probably ultrastructural, are needed to verify the ‘normalcy’ of the cells and tissues. This technique should also be tried in late mixed dentition period where orthognathic surgery cannot be performed. Appliance designed can be further enhanced with easier methods of activation such as self activating devices or miniature motorized devices.
| Item Type: | Thesis (Doctoral) |
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| Uncontrolled Keywords: | Long Term Stability, Histology, Anterior Maxillary Distraction Osteogenesis, Hypo-Plastic Maxillae, Cleft Lip & Palate Patients. |
| Subjects: | DENTAL > Oral and Maxillofacial Surgery |
| Depositing User: | Subramani R |
| Date Deposited: | 19 Oct 2021 06:40 |
| Last Modified: | 19 Oct 2021 06:40 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/13179 |
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