R
- radicular cyst
- radicular granuloma
- radiography
- ramus of mandible
- RCT
- reamer
- referred pain
- regional anesthesia
- reimplantation
- remaining root
- remineralization
- replantation
- resin
- resin cement
- resin filling
- rest
- rest position of mandible
- rest seat
- retainer
- retention
- ｒeturn on investment
- reversed bite
- reversed occlusion
- Ricketts' method
- roentgenogram
- roentgenographic cephalogram
- ROI
- root apex
- root canal
- root canal filling
- root canal filling materials
- root canal irrigation
- root canal treatment
- root caries
- root fracture
- root furcation
- root plaining
- root resorption
- root separation
- row of teeth
- RP
- rubber dam