A
- AACD
- AAE
- AAED
- AAP
- abfraction
- abrasion
- abscess
- abutment
- abutment construction
- abutment tooth
- acute inflammation
- ADA
- adhesion bridge
- agar impression material
- air abrasion
- air scaler
- air turbine
- alginate impression material
- allergy
- alveolar abscess
- alveolar bone
- alveolar osteitis
- amalgam
- American Academy of Cosmetic Dentistry
- American Academy of Esthetic Dentistry
- American Academy of Periodontology
- American Association of Endodontists
- American Dental Association
- American Society for Dental Aesthetics
- anchor
- anchor loss
- anesthesia
- anesthetic
- angel crown
- ankylosis
- anterior guidance
- anterior tooth
- antibiotics
- antibody
- antigen
- apex
- apexification
- apexiogenesis
- apical foramen
- apical lesion
- apically positioned flap surgery
- apical seat
- apical stop
- apicoectomy
- apparatus of extraoral fixation
- application of fluoride
- approximal surface
- arrangement of the teeth
- artglass
- arthrosis
- articular capsule
- articular fossa
- articulator
- artificial tooth
- ASDA
- attached gingiva
- attrition