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Concordance Between the Occlusal Contacts Record Obtained Using an Intraoral Scanner and Carbon Paper.

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Intraoral scanning and carbon paper show poor agreement for registering occlusal contacts. Combining both methods is recommended for accurate occlusion registration in orthodontic treatment.

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intraoral scannerocclusal contactsorthodontics

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Area of Science:

  • Dentistry
  • Orthodontics
  • Dental Technology

Background:

  • Accurate registration of occlusal contacts is crucial for orthodontic treatment planning and evaluation.
  • Traditional methods like carbon paper have limitations in precision and reproducibility.

Purpose of the Study:

  • To compare the reliability of intraoral scanning versus carbon paper for occlusal contact registration.
  • To assess the agreement between these two methods in orthodontic patients.

Main Methods:

  • 35 orthodontic patients (15-30 years) underwent occlusal registration using iTero Element intraoral scanner.
  • Simultaneously, occlusal records were obtained using 8 μm carbon paper.
  • Agreement was analyzed using kappa statistics and percentage of agreement/disagreement.

Main Results:

  • A poor agreement (Kappa 0.07-0.20) was found between intraoral scanning and carbon paper occlusal contact registration.
  • Most registered contacts were located in the posterior regions of the dental arch.
  • Intense contacts identified by iTero scanning appeared to correlate with carbon paper contacts.

Conclusions:

  • Intraoral scanning and carbon paper methods exhibit low agreement for occlusal contact registration.
  • Combining both intraoral scanning and carbon paper techniques is advised for comprehensive and accurate occlusion assessment.