Sage Journals: Discover world-class research

Abstract

The aim of this investigation was to establish whether the Index of Orthodontic Treatment Need is reliable over time between the ages of 11 and 19 years. It consisted of a longitudinal sample of 314 11- and 15-year-old and 142 19-year-old subjects who had not received orthodontic treatment or extractions. The changes in the aesthetic component (AC) and the dental health component (DHC) of the Index of Orthodontic Treatment Need (IOTN) were measured between the ages of 11 and 19 years.

The results suggested that the dental health component of IOTN was reliable over time between the ages of 11–19 years despite temporal changes in the separate occlusal traits that comprise the index. The aesthetic component of IOTN tended to show an improvement over time.

The Index of Orthodontic Treatment Need is a reliable index over time when taking into account occlusal changes that are occurring during the 11–19-year age range. The study provides some reassurance to clinicians that an IOTN grading at age 11 years is unlikely to change by the time the patient is 19 years.

Keywords

Index of Orthodontic Treatment Need Occlusal Index Reliability

Get full access to this article

View all access options for this article.

References

Adams

C. P.

(1972) Changes in occlusion and craniofacial pattern during growth, Transactions of European Orthodontic Society, 85–96.

Angle

E. H.

(1899) Classification of malocclusion, Dental Cosmos, 41, 248–264.

Barrow

G. V.

and White

J. R.

(1952) Developmental changes of the maxillary and mandibular dental arches, Angle Orthodontist, 22, 41–46.

Bishara

S. E.

, Jakobson

J. R.

, Treder

J. E.

and Stasi

M. J.

(1989) Changes in the maxillary and mandibular tooth size-arch length relationship from early adolescence to early adulthood, American Journal of Orthodontics, 95, 46–59.

Bjork

(1953) Variability and age changes in overjet and overbite, American Journal of Orthodontics, 39, 779–801.

Bjork

, Krebs

and Solow

(1964) A method for epidemiological registration of malocclusion, Acta Odontologica Scandinaviae, 22, 27–41.

Brook

(1987) The development of an index of orthodontic treatment priority, MSc thesis. University of Manchester.

Brook

and Shaw

W. C.

(1989) The development of an index of orthodontic treatment priority, European Journal of Orthodontics, 11, 309–320.

Brown

V. P.

and Daugaard-Jenson

(1951) Changes in the dentition from the early teens to the early twenties, Acta Odontologica Scandinaviae, 9, 177–192.

10.

Cryer

B. S.

(1966) Lower arch changes during the early teens, Transactions European Orthodontic Society, 87–101.

11.

Grainger

R. M.

(1967) Orthodontic Treatment Priority Index, National Center for Health Service, Series II, No. 25, United States Department of Health, Education and Welfare, Washington.

12.

Holmes

(1992) The prevalence of orthodontic treatment need, British Journal of Orthodontics, 79, 177–182.

13.

Humerfelt

and Slagsvold

(1972) Changes in occlusion and craniofacial pattern between 11 and 25 years of age. A follow up study of individuals with normal occlusion, Transactions European Orthodontic Society, 113–122.

14.

Luffingham

J. K.

(1978) A second look at soft tissue pressures, Dental Update, ÷73–80, 143–150.

15.

Lundstrom

(1969) Changes in crowding and spacing of the teeth with age, Dental Practitioner, 19, 218–223.

16.

Moorrees

C. F. A.

(1959) The dentition of the growing child, Harvard University Press, Cambridge, Massachusetts.

17.

Sakuda

, Kuruda

, Wada

and Masumoto

(1976) Changes in crowding of teeth during adolescence and their relation to the growth of the facial skeleton, Transactions European Orthodontic Society, 93–104.

18.

Savuin

and Savara

B. S.

(1972) The development of an excellent occlusion, American Journal of Orthodontics, 61, 345–352.

19.

Shaw

W. C.

and Addy

(1986) The dental and social effectiveness of orthodontic treatment: a strategy for investigation, Community Dentistry and Oral Epidemiology, 14, 60–64.

20.

Sillman

J. H.

(1964) Changes of the dental arches: Longitudinal study from birth to 25 years, American Journal of Orthodontics, 50, 824–842.

21.

Sinclair

P. M.

and Little

R. M.

(1983) Maturation of untreated normal occlusions, American Journal of Orthodontics, 83, 114–123.

22.

Stephenson

J. C.

(1962) The aetiology of malocclusion, Dental Practice Dental Record, 12, 301–305.

23.

Summers

C. J.

(1971) The Occlusal Index: a system for identifying and scoring occlusal disorders, American Dental Journal, 59, 552–567.

The Reliability of the Index of Orthodontic Treatment Need over Time

Abstract

Keywords

Get full access to this article

References