In addition to the influences of family dynamics, educational and vocational factors on the social development and rehabilitation of CLP patients, psychological problems, such as lowered self-esteem and difficulties during social interaction, are also experienced by CLP individuals. As only 20 per cent of cleft teams world-wide carry out a psychological assessment for their patients, it is likely that the prevalence of psychological problems is higher than the literature suggests. To maximize the chances of a positive outcome in the care of cleft affected individuals, CLP patients who are concerned about their appearance or who experience psychosocial problems need to be identified by cleft teams. Interventions, such as counselling or social interaction skills training, should be offered in order that the patient's self-esteem and social self-confidence can be increased. Current research surrounding patient and parent satisfaction with cleft care suffers from several areas of methodological weakness.