Histomorphometric evaluation of organic enamel elements in erupted bovine teeth. Part I. Enamel tufts

• Autorzy: Mehr K. , Piotrowski P. , Fraczak B. , Matthews-Kozanecka M.
• Języki publikacji: EN

Abstrakty

EN

The aim of the study was to compare erupted permanent bovine teeth of two types involved in the process of chewing in respect to the localisation and histomorphometric characteristics of enamel tufts. The research material comprised 240 fully erupted premolars and molars from the maxillae and mandibles of 27 heads of cattle from the Polish Black-and-White breed. Overall, 1,986 specimens of bovine teelh were analysed using a Nikon Eclipse E600 microscope with Micro Image v4.0 software. Enamel tufts were relatively numerous in the enamel of smooth surfaces - on average from 5.6 to 6.4 per cross-section of tooth crown. The average length of the enamel tufts expressed by means of a median was smaller for premolars (89.3 µm) than for molars (123.9 µm). The analysis of the value of Spearman's rank correlation coefficient revealed that no relationship existed between the length and width of tufts in molars (rₛ=0.26), and a low-level relationship was noted (rₛ=0.45) in premolars. On the basis of the Mann-Whitney U test for the metric measurements, no significant differences were discovered for the width of enamel tufts (P=0.427), but significant differences were observed for the length of enamel tufts (P=0.032). The observed differences in the histological structure of the enamel of posterior bovine teeth in comparison to human teeth indicate that a certain degree of caution ought to be considered when using bovine teeth as a substitute for human teeth in in vitro trials.

• Wydawca: -
• Czasopismo: Bulletin of the Veterinary Institute in Puławy
• Rocznik: 2012
• Tom: 56
• Numer: 4
• Opis fizyczny: p.685-689,fig.,ref.

Twórcy

autor

Mehr K.

• Department of Oral Rehabilitation, Poznan University of Medical Sciences, 60-812 Poznan, Poland

autor

Piotrowski P.

• Department of Oral Rehabilitation, Poznan University of Medical Sciences, 60-812 Poznan, Poland

autor

Fraczak B.

• Chair and Department of Dental Prosthetics, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland

autor

Matthews-Kozanecka M.

• Department of Social Sciences, Poznan University of Medical Sciences, 60-812 Poznan, Poland

Bibliografia

• 1. Amizuka N., Uchida T., Fukae M., Yamada M., Ozawa H.: Ultrastructural and immunocytochemical studies of enamel tufts in human permanent teeth. Arch Histol Cytol 1992, 55, 179-190.
• 2. Andrews A.H.: Anatomy of the oral cavity, eruption, and developmental abnormalities in ruminants. In: Veterinary Dentistry edited by Harvey C.E., Saunders W.B., Philadelphia, 1985, pp. 235-255.
• 3. Brand F.: Spindeln und Bueschel Menschlicher Zaehne. Bull Group Int Rech Sci Stomatol 1968, 11, 299-308.
• 4. Braga M.M., Martignon S., Ekstrand K.R., Ricketts D.N., Imparato J.C., Mendes F.M.: Parameters associated with active caries lesions assessed by two different visual scoring systems on occlusal surfaces of primary molars - a multilevel approach. Community Dent Oral Epidemiol 2010, 38, 549-558.
• 5. Emily P., Orsini P.G., Lobprise H.B., Wiggs R.B.: Oral and dental disease in large animals. In: Veterinary Dentistry Principles & Practice edited by Wiggs R.B., Lobprise H.B., Lippincott-Raven Publishers, Philadelphia, 1997, pp. 576-578.
• 6. Iijima M., Fan D., Bromley K.M., Sun Z., Moradian- Oldak J.: Tooth enamel proteins enamelin and amelogenin cooperate to regulate the growth morphology of octacalcium phosphate crystals. J Crystal Growth 2010, 11, 4815-4822.
• 7. Chief Veterinary Officer Regulation of April 8, 2009, No. GIWbŚ-500-2/2009, re: procedures concerning handling special risk materials (SRMs) in slaughterhouses and meat processing plants as well as obtaining bovine head muscles.
• 8. Kodaka T., Debari K: Structure, microhardness and calcification values of enamel tufts in human teeth. Bull Tokyo Dent Coll 1982, 23, 227-238.
• 9. Mehr K., Matthews-Brzozowska T., Piotrowski P., Miśkowiak B.: Analysis of selected organic elements of enamel considering effects of oral cavity environment. Polish J Environ Stud 2007, 16, 2C, 247-250.
• 10. Miśkowiak B., Mehr K., Piotrowski P., Matthews- Brzozowska T.: The pattern and localisation of selected organic elements in bovine teeth enamel. Medycyna Wet 2006, 62, 570-573.
• 11. Osborn J.W.: The 3-dimensional morphology of the tufts in human enamel. Acta Anat 1969, 73, 481-495.
• 12. Palamara J., Phakey P.P., Rachinger W.A., Orams H.J.: The ultrastructure of spindles and tufts in human dental enamel. Adv Dent Res 1989, 3, 249-257.
• 13. Ricketts D.N., Ekstrand K.R., Kidd E.A., Larsen T.: Relating visual and radiographic ranked scoring systems for occlusal caries detection to histological and microbiological evidence. Oper Dent 2002, 27, 231-237.
• 14. Rosner B.: Fundamentals of biostatics. Brooks/Cole Centage Learning, Boston, USA, 2011.
• 15. Sato I., Sunohara M., Mikami A., Yoshida S., Sato T.: Comparison between deciduous and permanent incisor teeth in morphology of bovine enamel. Okajimas Folia Anat Jpn 1999, 76, 131-136.
• 16. Sobczak A., Błyszczek E.: Directions for the management of by-products in the meat industry. Czasop Techn l-Ch/2009, 106, 141-151.
• 17. Ministry of Environmental Protection order of September 27, 2001, re: industrial waste catalogue, Law Gazette No. 112, item 1206.
• 18. Turssi C.P., Messias D.F., Corona S.M., Serra M.C.: Viability of using enamel and dentin from bovine origin as a substitute for human counterparts in an intraoral erosion model. Braz Dent J 2010, 21, 332-336.
• 19. Guidelines for the utilisation of by-products and the recommended methods of waste management in agriculture and the food industry (in Polish) Ministry of Agriculture and Rural Development, Institute of Technology and Life Sciences, Falenty-Warszawa, 2010, pp. 42-46.
• 20. Yassen G.H., Platt J.A., Hara A.T.: Bovine teeth as substitute for human teeth in dental research: a review of literature. J Oral Sci 2011, 53, 273-282.