Which property is not desirable in bite registration materials?

Which property is not desirable in bite registration materials?

• A. High dimensional stability
• B. Low tear strength
• C. Comfortable for patient
• D. Easy to trim

Answer: (B)

Tear strength matters because a bite registration must be removed from the teeth or the model without tearing or distortion. If the material has low tear strength, it can tear easily during removal or while trimming, which skews the recorded bite and compromises occlusal accuracy. In contrast, high dimensional stability ensures the captured relationship doesn’t change after setting, comfortable materials keep the patient still and cooperative during the procedure, and easy trimming allows clean finishing without introducing distortions.

Tear strength matters because a bite registration must be removed from the teeth or the model without tearing or distortion. If the material has low tear strength, it can tear easily during removal or while trimming, which skews the recorded bite and compromises occlusal accuracy. In contrast, high dimensional stability ensures the captured relationship doesn’t change after setting, comfortable materials keep the patient still and cooperative during the procedure, and easy trimming allows clean finishing without introducing distortions.