Prosthodontics

 Biomechanics & Support

• Clasp Arm Flexibility

  • Inversely proportional to diameter: thinner clasp arms are more flexible.

• Posterior Tooth Support

  • Teeth with divergent roots offer better periodontal support and stability.

 Abutment Selection

• Lateral Incisor

  • Not ideal as abutment due to low pericemental area and poor root morphology.

 Phonetics & Tooth Placement

• Labiodental Sounds (‘f’, ‘v’)

  • Help determine vertical positioning of maxillary anterior teeth during try-in.

Diagnostic Tools

• Gnathodynamometer

  • Instrument used to measure biting force—valuable in occlusal analysis and prosthesis design.

Muscles & Movement

• Orbitoaxial Opening

  • Controlled by lateral pterygoid muscle—key in mandibular translation.

• Tongue Movement

  • Influences the palatoglossal arch—important in denture border molding and speech.