This paper presents two cases in which supplemental premolars were an incidental finding. Although anomalies of tooth number and form are quite common, both cases demonstrate late forming supernumeraries with one case illustrating their development in a more unusual site. It is not routine practice to screen for late development of teeth during orthodontic treatment. Therefore the possibility of their interference with occlusal development or orthodontic mechanics such as space closure, should always be kept in mind.
Get full access to this article
View all access options for this article.
References
1.
BodinI., JulinP. and ThomssonM. (1978) Hyperdontia I. Frequency and distribution of supernumerary teeth among 21,609 patients, Dentomaxillofacial Radiology, 7, 15–17.
2.
BolkL. (1914) Supernumerary teeth in the molar region in man, Dental Cosmos, 56, 154–167.
3.
BowdenD. E. J. (1971) Post-permanent dentition in the premolar region, British Dental Journal, 131, 113–116.
4.
BreckonJ. J. W. and JonesS. P. (1991) Late forming supernumeraries in the mandibular premolar region, British Journal of Orthodontics, 18, 329–331.
5.
BrookA. H. (1974) Dental anomalies of number, form and size: their prevalence in British schoolchildren, Journal of International Association of Dentistry for Children, 5, 37–53.
6.
BrookA. H. (1984) A unifying aetiological explanation for anomalies of human tooth number and size, Archives of Oral Biology, 29, 373–378.
7.
BrunningL. J., DunlapL. and MergeleM. E. (1957) Report of supernumerary teeth in Houston, Texas school children, Journal of Dentistry for Children, 24, 98–105.
8.
Di BiaseD. D. (1969) Midline supernumeraries and eruption of the maxillary incisor, Dental Practitioner and Dental Record, 20, 35–40.
9.
FaderM., KlineS. N., SpatzS. S. and ZubrowH. J. (1962) Gardner's syndrome (intestinal polyposis, osteomas, sebaceous cysts) and a new dental discovery, Oral Surgery, Oral Medicine and Oral Pathology, 15, 153–172.
10.
FosterT. D. and TaylorG. S. (1969) Characteristics of supernumerary teeth in the upper central incisor region, Dental Practitioner and Dental Record, 20, 8–12.
11.
FullerA. C. (1966) Supernumerary teeth. Report of bilateral maxillary supernumeraries, British Dental Journal, 121, 340.
12.
GardinerJ. H. (1961) Supernumerary teeth, Dental Practitioner and Dental Record, 12, 63–73.
13.
JensenB. L. and KreiborgS. (1990) Development of the dentition in cleidocranial dysplasia, Journal of Oral Pathology and Medicine, 19, 89–93.
14.
JokelaM. (1976) Rapid root resorption in central incisor caused by a supernumerary tooth. A case report, Proceedings of the Finnish Dental Society, 72, 56–59.
15.
KantorM. L., BaileyC. S. and BurkesE. J. (1988) Duplication of the premolar dentition, Oral Surgery, Oral Medicine and Oral Pathology, 66, 62–64.
16.
LowryJ. C. and MacCallumH. R. (1965) Bilateral supernumerary teeth in the maxillary molar region, British Dental Journal, 118, 390–391.
17.
MasonC. and RuleD. C. (1995) Midline supernumeraries: a family affair, Dental Update, 22, 34–35.
18.
McKibbenD. R. and BrearleyL. J. (1971) Radiographic determination of the prevalence of selected dental anomalies in children, Journal of International Association of Dentistry for Children, 38, 390–398.
19.
MillhonJ. A. and StafneE. C. (1941) Incidence of supernumerary and congenitally missing lateral incisor teeth in 81 cases of harelip and cleft palate, American Journal of Orthodontics and Oral Surgery, 27, 599–604.
20.
MorganG. A., MorganP. R. and CrouchS. A. (1970) Recurring mandibular supplemental premolars, Oral Surgery, Oral Medicine and Oral Pathology, 30, 501–504.
21.
NazifM. M., RuffaloR. C. and ZulloT. (1983) Impacted supernumerary teeth: a survey of 50 cases, Journal of the American Dental Association, 106, 201–204.
22.
OehlersF. A. C. (1952) Postpermanent premolars, British Dental Journal, 93, 157–158.
23.
PoytonG. H., MorganG. A. and CrouchS. A. (1960) Recurring supernumerary mandibular premolars. Report of a case of postmature development, Oral Surgery, Oral Medicine and Oral Pathology, 13, 964–966.
24.
PriceC. and HogginsG. S. (1969) A category of supernumerary premolar teeth, British Dental Journal, 126, 224–228.
25.
PrimoschR. E. (1981) Anterior supernumerary teeth—assessment and surgical intervention in children, Pediatric Dentistry, 3, 204–215.
26.
RubensteinL. K., LindauerS. J., IsaacsonR. J. and GermaneN. (1991) Development of supernumerary premolars in an orthodontic population, Oral surgery, Oral Medicine and Oral Pathology, 71, 392–395.
27.
ScottJ. H. and SymonsN. B. B. (1967) Introduction to Dental Anatomy, 5th edn, Churchill Livingstone, London.
28.
Selwyn BarnettB. (1974) A case of multiple supernumerary premolars, British Journal of Orthodontics, 1, 217–218.
29.
StafneE. C. (1932) Supernumerary teeth, Dental Cosmos, 74, 653–659.
30.
WeberF. N. (1964) Supernumerary teeth, Dental Clinics of North America, 509–517.
31.
WinterG. B. and BrookA. H. (1986) Companion to Dental Studies: Clinical Dentistry, Blackwell Scientific Publications, Oxford.
