The Effect of Third Molar Removal on the Size of Pre-molar Extraction Spaces in the Lower Arch

Abstract

A method is described for the accurate measurement of space closure at lower pre-molar extraction sites. A case report illustrates the method and gives support to the view that mandibular third molars influence the rate of mesial drift in the lower arch.

Get full access to this article

View all access options for this article.

References

Cookson

(1971) Space closure following loss of lower first premolars, Dental Practitioner and Dental Record, 21, 411–416.

Dahlberg

(1940) Statistical methods for medical and biological students, New York: Interscience Publications.

Gravely

J. F.

and Benzies

P. M.

(1974) The clinical significance of tracing error in cephalometry, British Journal of Orthodontics, 1, 95–101.

Lundström

(1955) Intermaxillary tooth width ratio and tooth alignment and occlusion, Acta Odontologica Scandinavica, 12, 266–292.

Moorrees

C. F. A.

, Thomsen

, Jensen

and Yen

(1957) Mesiodistal crown diameters of the deciduous and permanent teeth in individuals, Journal of Dental Research, 36, 39–47.

Robertson

N. A. E.

and Cavina

R. A.

(1975) Unpublished work presented to the Annual Meeting of the British Society for the Study of Orthodontics, April 1975.

Richardson

M. E.

, Adams

C. P.

and McCartney

T. P. G.

(1963) An analysis of tooth measuring methods on dental casts, European Orthodontic Society Transactions, 285–301.

Richardson

M. E.

(1979) Late lower arch crowding: facial growth or forward drift, European Journal of Orthodontics, 1, 219–225.

Schwarze

C. W.

(1973) Hat die Keimentfernung der Weisheitszahne Einflus auf die Spatform des Zähnbogens, Fortschritte der Kieferorthopadie, 34, 387–400.

10.

Seipel

C. M.

(1946) Variation of tooth position, Svensk Tandläkare Tidskrift, 39, supplement.