Quantification of negative aesthetic ratings in primary unrepaired unilateral cleft lip infants by modified paired comparison method.

Objective: To quantify negative aesthetic ratings in primary unrepaired cleft lip infants by further refining our previously reported paired comparison method.

Design: The Thurstone paired comparison method was used to quantify negative aesthetic ratings of plaster facial models selected and ordered according to a table of paired random numbers.

Patients, Participants: A total of 30 facial models of unrepaired incomplete unilateral cleft lip infants were used in this study.