Clinical Assessment of Endodontically Treated Posterior Teeth Prepared With Two Occlusal Designs and Two Ceramic Full Coverage Restorations

Clinical Assessment of Endodontically Treated Posterior Teeth Prepared With Two Occlusal Designs and Two Ceramic Full Coverage Restorations (Randomized Clinical Trial)

The aim of this study was to assess the impact of flat occlusal preparation design (FOD) of endodontically treated molars on the fracture resistance and distribution of stresses among a ceramic crown-molar structure when compared to two planes occlusal preparation design (TOD).

Inclusion Criteria:

• Patients with posterior root canal treated teeth that require full coverage restoration.
• 20 - 50 years old.
• Males or Females.
• Good oral hygiene.
• Presence of favorable occlusion and teeth are in normal alignment with the adjacent teeth.
• Patients agreed to return to follow-up evaluation.

Exclusion Criteria:

• Active periodontal or pulpal diseases.
• Lack of opposing dentition.
• Severe medical complications.
• Pregnancy.
• Lack of compliance.
• Evidence of parafunctional habits
• Temporomandibular joint disorders