Table 1

Outcomes and explanatory variables

Percentage of patient contact timeWhat percentage of patient contact time do you (excluding your hygienist or other office staff) spend in a typical month performing the following procedures? If you always refer these procedures to other practitioners, please record 0%(1) Non-implant restorative (amalgams, composites, crowns, bridges, posts, foundations, etc); (2) implants (prosthetic and surgical procedures for implants); (3) removable prosthetics (full and partial dentures); (4) extractions (surgical and non-surgical); (5) periodontal therapy (surgical and non-surgical; includes scaling/root planing that you personally do); (6) endodontic therapy (root canals and endo surgery); (7) other (sealants, periodic and hygiene examinations, preventive dentistry, diagnostic or other; please specify)
Percentage of patients who received specific dental servicesOn what percentage of patients do you or your staff perform the following services at some time while they are patients in your practice(1) Diet counseling; (2) blood pressure screening, (3) oral cancer screening examination, (4) oral hygiene instruction, (5) in-office fluoride application, (6) fluoride gel/rinse prescribed or recommended for home use, (7) patient education from written pamphlets, (8) patient education from videos or slides, (9) intraoral photographs taken (conventional, non-video photography), (10) intraoral video images taken (usually performed with fiberoptic), (11) in-office whitening (usually performed with hydrogen peroxide), (12) at-home whitening (usually performed with carbamide peroxide)
Explanatory variables(1) Dentists' individual characteristicsYears since graduation from dental school, gender and efficacy of caries risk assessment
(2) Practice settingType of practice, practice busyness and city population (government ordinance-designated city with population over 700 000 or not)
(3) Patients’ characteristicsPercentage of patients interested in caries prevention, patient age distribution and per cent of patients who self-pay
(4) Procedure-related characteristicsWhether caries risk is assessed as a routine part of treatment planning and the percentage of patients receiving hygiene instruction Percentage of patients who receive individualised caries prevention