This clinical research aims to Evaluate Crowns Designed by Artificial Intelligence Versus Crowns Designed by Traditional Design Software
The research will be conducted on a sample of patients with an indication for crowning of the first lower molar. Ten dental crowns will be prepared.
After obtaining written consent from patients who meet the inclusion and exclusion criteria, 10 dental crowns will be prepared. Measurements will be taken using silicone impressions and then converted into digital format.
The digital impression will be sent to the selected dental restoration design software used in the study. The same parameters will be adjusted in all software programs for each crown.
After the design is completed, the designs will be sent to the milling unit. For each case, three crowns will be designed and milled from polymethyl methacrylate (PMMA).
The crown will be clinically examined and evaluated according to specific criteria. Marginal fit, proximal contact quality, and occlusion will be assessed.
The best crown will be milled from zirconia and delivered to the patient.
Patients aged 18-60 years requiring a crown for a lower first molar
Good oral and gingival health
adjacent teeth in good condition
Natural opposing teeth
Abnormal occlusal habits such as bruxism
Active periodontal diseases
Allergy to crown materials (e.g., polymethyl methacrylate, PMMA)
Poor oral hygiene
Single group
Crowns
Other intervention1. Tooth Preparation: Prepare the teeth to receive a zirconia crown. 2. Impression Taking: Obtain impressions using silicone. 3. Digital Conversion: Convert impressions into a digital model using a laboratory scanner. 4. Design Submission: Send the digital model to selected crown design program. 5. Crown Fabrication: crowns designed will be produced from PMMA using a milling unit. 6. Clinical Evaluation: Conduct a clinical assessment of the crowns 7. the best crown design will be milled from zirconia and delivered Evaluation of Crowns designed by following metrics: 1. Marginal fit 2. proximal contact 3. Occlusion
Marginal Fit
Evaluation is conducted by 2 dentists to determine whether the restoration is clinically acceptable or unacceptable using an explorer or The silicone replica technique (Silicone Replica Technique) is used to evaluate the marginal fit of crowns using silicone material or Evaluation is conducted using Geomagic X
Clinical evaluation of proximal contact points
To evaluate the interproximal contact points of the crown clinically using waxed dental floss: if the floss passes with slight resistance, the contact points are considered acceptable if the floss passes without resistance, the contact points are considered unacceptable if the floss hard to pass or tearing, the contact points are considered Tight Contact
clinical evaluation of the occlusion
Clinical Evaluation of Occlusion Using Articulating Paper Excellent (both 100- and 12-mm articulating paper imprints exist on the crown and adjacent teeth) nice occlusal contact distribution Good (only 100-mm articulating paper imprints exist on adjacent teeth) Individual occlusal contact points missing or deviated but occlusal contacts on main supporting cusp Satisfactory crown too high, thus supra occlusion No occlusal contacts on supporting cusps but contacts present on other parts of occlusal surface Unsatisfactory No occlusal contact points on crown(infra occlusion)
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