toothsupported

Tooth-supported is a term used in dentistry to describe a prosthetic restoration or appliance that derives primary support from natural teeth (abutment teeth) rather than from dental implants or the soft-tissue foundation. It is most commonly applied to fixed partial dentures (bridges) and removable partial dentures that rely on prepared adjacent teeth for retention and stabilization.

In a tooth-supported fixed partial denture, one or more pontic units are connected to crowns placed on prepared neighboring teeth, distributing occlusal loads through the abutments. In a tooth-supported removable partial denture, rests and clasps engage abutment teeth while the denture base stabilizes the edentulous areas.

Indications include an adequate number of healthy abutment teeth, favorable periodontal status, and a bite that can tolerate load transfer without overloading the supporting teeth. Patient preference, treatment duration, and cost considerations also play a role. Tooth-supported restorations are chosen when preserving natural teeth is advantageous and implants are not suitable or desired.

Design considerations emphasize preserving tooth structure on abutments, ensuring stable occlusion, and achieving reliable retention and distribution of forces. Careful evaluation of periodontal health, crown or connector design, and plans for maintenance are essential. Abutment teeth must be protected against caries, mobility, and overloading to ensure long-term success.

Advantages include preservation of natural teeth and proprioception, potentially lower cost than implants, and familiar aesthetics. Limitations involve the dependence on the health of abutment teeth, possible alteration of abutment teeth, and risk of caries or periodontal problems if neglected.

In practice, tooth-supported prostheses are distinct from implant-supported and mucosa-supported options and require thorough clinical assessment and meticulous maintenance.