Background: Successful surgical correction of craniofacial disfigurement depends on precise knowledge of the craniofacial norms specific to the patient’s ethnic group.

Objective: This study sought to determine the anthropometric measurements of normal nasal parameters in preschool-age northeastern Thai children.

Materials and method: The nasal aesthetic parameters of 30 children, age of four to seven years, in northeast Thailand were evaluated using a 3-D camera of four distances, one angle, and three ratios.

Results:The normal values of each of the eight parameters listed above were determined by age group. Mean length of nasal width, nasal tip height, dome height and columellar height were 30.87 mm, 13.17 mm, 7.73 mm and 5.63 mm respectively. The columella-labial angle was 116.10 degree.   

Conclusion:The shape and proportions of the nose in Thai children of preschool age often differ from those of children ethnicities. The assessment of and guidelines for corrective surgery should be based on standard values that are specific to this group.