Talbi, W.M.I. (2017) Morphological Characteristics of the Palatal Rugae in Dutch Caucasian population. thesis, Dentistry.
Full text available on request.Abstract
Background: Current literature indicates that palatal rugae seem to possess unique anatomical characteristics per individual. Numerous studies investigated whether these features can be utilized for forensic identification, especially when common identification methods such as fingerprints and DNA testing are not feasible. It is suggested that the number, length and shape of palatal rugae depend on ethnicity and sex. Objectives: To evaluate anatomical differences in palatal rugae between Dutch Caucasian male and female participants. Material and methods: One hundred digitized dental casts (50 males; 50 females) were randomly selected from adult Dutch Caucasian patients admitted to the department of Orthodontics, UMCG, Groningen, The Netherlands. The classification of Lysell, which is further modified by Kapali et al. was adopted in order to study the total number, length and pattern of the palatal rugae. Results: The study showed that palatal rugae are unique in each participant. However, no statistically significant relationship was found between the length of palatal rugae and the sex, χ2 =(2, N= 100), p= .153, as well as the palatal rugae shape patterns and the sex, χ2 = (4, N= 100), p= .441 Male participants had slightly more but insignificant (P> 0.05) total number of palatine rugae than female participants. Primary rugae ( > 5mm.) were most prevalent in both male and female groups with a percentage value of 71.1% and 69.2% respectively. The wavy pattern was predominant among the rugae pattern categories with a percentage value of 36% and 35% respectively. Conclusion: The study agrees that palatal rugae are unique per individual. However, palatal rugae do not seem to possess sexual dimorphism characteristics in the Dutch Caucasian ethnicity. The adopted classification method seems to suffer from oversimplification and the lack of clear distinctive capabilities. Further work is needed toward developing a valid and reproducible instrumentation. A computerized identification software seems most likely to be feasible. Due to limited number of available studies using this methodology further research following this path should be stimulated.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Jüch, Dr. P.J.W |
| Faculty: | Medical Sciences |
| Date Deposited: | 19 Nov 2021 12:21 |
| Last Modified: | 19 Nov 2021 15:06 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/2804 |
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