Role of Attrition and Occlusal Contact in the Physiology of the Rat Incisor: X. The Part Played by the Periodontal Ligament in the Eruptive Process

Abstract

Removal of the proliferating base of the rat incisor did not influence the rate of eruption which responded to changes in impediment to eruption in a fashion similar to that for control teeth. It is the periodontal ligament rather than the proliferating cells that is responsible for tooth eruption. The elements of the periodontal ligament apparently responsible for tooth movement are the mature fibroblasts.

Get full access to this article

View all access options for this article.

References

Sicher, H. : Tooth Eruption: The Axial Movement of Continuously Growing Teeth, J Dent Res 21: 201-210, 1942.

Thomas, N.R. : The Process and Mechanism of Tooth Eruption, PhD thesis, University of Bristol, 1965.

Thomas, N.R. : The Properties of Collagen in the Periodontium of an Erupting Tooth, Anderson, D.J. , Eastoe, J.E. , and Picton, D. (eds) : The Mechanism of Tooth Support. A Symposium, Bristol, Eng.: Wright & Sons, 1967, pp 102-106.

Ness, A.R. : Eruption '70, in APEX London: The Dental University College Hospital, 1970.

Berkovitz, B.K.B. : The Effect of Root Transection and Partial Root Resection on the Unimpeded Eruption Rate of the Rat Incisor, Arch Oral Biol 16: 1033-1043, 1971.

Beertsen, W. ; Everts, V. ; and Van Den Hooff, A. : Fine Structure of Fibroblasts in the Periodontal Ligament of the Rat Incisor and Their Possible Role in Tooth Eruption, Arch Oral Biol 19: 1087-1098, 1974.

Beertsen, W. : Migration of Fibroblasts in the Periodontal Ligament of the Mouse Incisor as Revealed by Autoradiography, Arch Oral Biol 20: 659-666, 1975.

Kostland, J. ; Thorova, J. ; and Skach, M. : Erupce Ilodaveho Zubu po Resekci jeho Rustove Zony, Cesk Stomatol 6: 401-410, 1960.

Herzberg, F. , and Schour, I. : Effect of Pulp Removal and Hertwig's Sheath on Eruption of Incisors in Albino Rat, J Dent Res 20: 264, 1941.

10.

Bryer, L.W. : An Experimental Evaluation of the Physiology of Tooth Eruption, Int Dent J 7:432-478, 1957.

11.

Berkovitz, B.K.B. , and Thomas , N.R. : Unimpeded Eruption in the Root-Resected Lower Incisor of the Rat with a Preliminary Note on Tooth Transaction, Arch Oral Biol 14:771-780, 1969.

12.

Berkovitz, B.K.B. ; Migdalski, A. ; and Solomon, M. : The Effect of the Lathyritic Agent Aminoacetonitrile on the Unimpeded Eruption Rate in Normal and Root-Resected Rat Lower Incisors , Arch Oral Biol 17: 1755-1763, 1972 .

13.

Michaeli, Y. ; Pitaru, S. ; Zajicek, G. ; and Weinreb, M.M. : Role of Attrition and Occlusal Contact in the Physiology of the Rat Incisor: IX. Impeded and Unimpeded Eruption in Lathyric Rats, J Dent Res 54: 891-869, 1975.

14.

Zajicek, G. : Fibroblast Cell Kinetics in the Periodontal Ligament, Cell Tissue Kinet 7: 479-492, 1974.

15.

Michaeli, Y. ; Weinreb, M.M. ; and Zajicek, G. : Role of Attrition and Occlusal Contact in the Physiology of the Rat Incisor: VIII. Tooth Length and Occlusal Plane as Regulating Factors of Eruption and Attrition Rates, J Dent Res 53: 1215-1218, 1974.

16.

Moxham, B.J. , and Berkovitz, B.K.B. : The Effects of Root Transaction on the Unimpeded Eruption Rate of the Rabbit Mandibular Incisor, Arch Oral Biol 19 : 903-909, 1974.

17.

Michaeli, Y. ; Weinreb, M.M. ; and Zajicek, G. : Role of Attrition and Occlusal Contact in the Physiology of the Rat Incisor: V. Life Cycle of Inner Enamel Epithelium Cells at Various Rates of Eruption, J Dent Res 51: 966-969,1972.