Perioral soft-tissues in orthodontics
Hodgkinson, Danielle Rose Elizabeth
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http://hdl.handle.net/10523/10578
Abstract:
The effect of orthodontic extractions on the face has been a contentious issue in orthodontics for over a century. The soft-tissue properties of the lips have often been cited as a factor affecting the facial response to orthodontic tooth movement. The first part of this project was an observational study using a hand-held myotonometric device to measure the soft-tissue properties of the lips, and found variability between age, sex, BMI, anatomic site, lip morphology, and craniofacial morphology. The second part was a pilot study that successfully designed a non-invasive, retrospective method to investigate the three-dimensional response of the soft tissues to incisor retraction. Despite marked interindividual variation among the small sample, the lip retraction was consistently less than the amount of incisor retraction.
Date:
2020
Advisor:
Farella, Mauro; Antoun, Joseph; Mei, Peter; Kang, Austin
Degree Name:
Doctor of Clinical Dentistry
Degree Discipline:
Oral Sciences
Publisher:
University of Otago
Keywords:
New Zealand; Orthodontic; Soft-Tissue; Perioral; Extraction; Non-Extraction; Lip; Lips; Orbicularis; Oris
Research Type:
Thesis
Languages:
English
Collections
- Oral Sciences [127]
- Thesis - Doctoral [3081]