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Prosthodontics & Occlusion · single question

What does the Law of Ante state in prosthodontics?

  1. It governs the occlusal relationship between anterior and posterior teeth
  2. It determines the shade of dental ceramics used in fixed partial dentures
  3. It regulates the placement of implants in partial fixed prostheses
  4. The combined periodontal ligament area of abutment teeth must equal or exceed that of the teeth being replaced
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Correct answer: D. The combined periodontal ligament area of abutment teeth must equal or exceed that of the teeth being replaced

The Law of Ante (1926) states that the COMBINED PERIODONTAL MEMBRANE/LIGAMENT AREA of the abutment teeth supporting a fixed partial denture must be equal to or GREATER than the PDL area of the teeth being replaced. This ensures adequate support for the prosthesis. It has nothing to do with shade selection (B), implant placement (C), or occlusal relationships (A). D correctly describes the law. Note: answer D was implied from context.

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