Bibliotherapy is an effective method of delivering cognitive behavioural therapy as self-help or guided self-help (with some therapist input) formats.Objective To evaluate the efficacy of a specially designed CPD package which was designed to improve coping skills, build resilience and reduce the impact of anxiety on dentists' clinical decision-making.Design A multi-centred quasi-experiment.Setting Lincolnshire and Nottinghamshire (England) 2014.Materials and methods Thirty-five volunteer primary care dentists used two versions (self-help [SH] and guided self-help [GSH], which included a 3 hour workshop) of a specially written cognitive behavioural therapy bibliotherapy programme designed to improve well-being and decision-making.Main Outcome Measures The main outcome measures were dentists' burnout, depression, anxiety, stress and decision-making style.