Objectives: This study, part of a national mail survey of dentist malp
ractice liability claims, reports the reliability and validity of a ne
w 22-item instrument measuring frustrating patient visits. Methods: Th
e items were subjected to factor analysis and subscales constructed. R
eliability was assessed using Cronbach's alpha. Validity was assessed
by comparing subscale scores to self-reports of satisfaction and liabi
lity claims. Results: Factor analysis revealed four subscales represen
ting unpleasant feelings, lack of communication, compliance, and pract
ice organization (alpha=0.60-0.86). Compliance was the most important
factor. Subscale scores were related to satisfaction with practice and
the proportion of patient visits in the practice that were frustratin
g to the dentist. Dentists who reported frustrating patient visits as
quite typical of their practices were more likely to have had a malpra
ctice liability claim within the last five years. Conclusion: This ins
trument may be of value in detecting patient-dentist communication dif
ficulties that are the precursor to liability claims.