The Proximal Contact Tightness and Location in Class II Composite Restorations

This study aims to investigate consecutive biological changes in proximal contact tightness using digital force gauge and evaluate proximal contact location using cone beam computed tomography between class II direct composite restorations and adjacent teeth after using sectional matrix system and with different contact forming instruments.

Inclusion Criteria:Presence of proximal caries in CBCT x-ray with score 3 to 4 according to the radiographic International Caries Detection and Assessment System (ICDAS).Presence of the antagonist and the adjacent tooth making contact.The teeth to be restored had to show no signs of pulpitis but positive sensitivity using endo ice testing.Size of the isthmus with no more than 2/3 of the intercuspal distanceGood oral health and absence of periodontal diseasePatients who are not suffering from severe systemic diseases or allergiesExclusion Criteria:Medically compromised patientsClinical signs of bruxism, traumatic malocclusionPregnant or breast feeding at the time of restoration placementIntolerance or allergy toward the applied restorative materials