Measurement of soft tissue profile changes as a result of placement of orthodontic brackets

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dc.contributor.authorKebert, Michele
dc.date.accessioned2008-03-12T10:19:46Z
dc.date.available2008-03-12T10:19:46Z
dc.date.issued2008-03-12T10:19:46Z
dc.description.abstractABSTRACT This research report quantifies the soft tissue profile changes that occur as a result of the placement of orthodontic brackets. It also assesses whether patients are able to perceive any changes in their own profiles immediately post bonding. Using a standardised photographic technique, profile photographs were taken of a group of patients both before and immediately after the placement of orthodontic brackets. A series of angular and linear measurements were made each on the photographic images using a computer software program. The data obtained from the ‘before’ and ‘after’ photographs were then compared. Patients were also asked several standard questions about their ‘before’ and ‘after’ photographs. The results indicate that the placement of orthodontic brackets can cause changes in the soft tissue profile of patients. Statistically significant changes were found for four of the ten profile measurements that were investigated, namely the Nasolabial Angle, the Maxillo-Mandibular Contour, the Interlabial Angle and the Lower Lip Projection. It was also found that patients are able to perceive changes in their profiles brought about by the placement of orthodontic brackets, and that most are able to correctly recognise which photograph was taken after bracket placement. The majority of patients prefer the photographs of their profiles taken before bracket placement. This study was conducted using a standardised orthodontic bracket. Future research may be carried out to compare profile changes occurring with other bracket systems. This may assist manufacturers in designing brackets that are more comfortable and acceptable for patients.en
dc.format.extent35302 bytes
dc.format.extent691758 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10539/4660
dc.language.isoenen
dc.subjectmeasurementen
dc.subjectsoft tissue profileen
dc.subjectorthodontic bracketsen
dc.titleMeasurement of soft tissue profile changes as a result of placement of orthodontic bracketsen
dc.typeThesisen
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