• Wacharaporn Tasachan, D.D.S., Cert. of Fellowship in Pedodontics, Diplomate, Thai Board of Pediatric Dentistry
• Pariyakamon Taworanun, D.D.S., M.S.

Objective  To study average dmf, DMF in different age groups and sexes of children registered at the Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University in 1994-1999, and compare to the results from a study done in 1993.

Materials and methods  Retrospective study of clinical examination records and bitewing radiographs of 1,650 children, age 2-12 years, examined at the Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University in 1994-1999. The average dmft, dmfs, DMFT and DMFS in both sexes were calculated and statistical analyzed by using t-test.

Results  From 1994 to 1999, the average dmft and dmfs of 2-6 year old children decreased from 7.93 to 6.38 and 19.53 to 15.53, except the average dmfs in 1997. From 1994 to 1999, the average DMFT and DMFS of 7-12 year old children decreased from 3.26 to 2.54 and 5.55 to 3.96. When compared with the previous results of 1993, there is a trend towards the increase in the average dmf and DMF values, except the average dmft in 1999, and the average of DMFT, DMFS in both 1997 and 1999. It was seen that sex was not significantly related to the dmf and DMF (p>0.05), except dmft (in 1995, 1998), dmfs (in 1998) of boys and DMFT (in 1999) of girls were significantly higher. The average dmft of 3, 6 year old children and DMFT of 12 year old children in 1994-1999 decreased from 7.73 to 4.66, 8.38 to 6.63 and 5.25 to 5.17 respectively.

Conclusion  The average dmf of 2-6 year old children and DMF of 7-12 year old children decreased from 1994 to 1999. When compared with previous results of 1993, there is a trend towards the increase in the average of dmf and DMF values. It was seen that sex was not significantly related to the dmf and DMF. The average dmft of 3, 6 year old children and DMFT of 12 year old children decreased from 1994 to 1999.

(CU Dent J 2001;24:19-29)