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12 February 2024: Lab/In Vitro Research

Evaluation of the Milled and Three-Dimensional Digital Manufacturing, 10-Degree and 20-Degree Preparation Taper, Groove and Box Auxiliary Retentive Features, and Conventional and Resin-Based Provisional Cement Type on the Adhesive Failure Stress of 3 mm Short Provisional Crowns

Mohammed E. Sayed 1ABDEG* , Nandalur Kulashekar Reddy 1ABDEG , Naveen R. Reddy 1ABDEG , Khurshid A. Mattoo 1ACDEF , Yaser Ali Jad 2BCDEF , Abdullah Jaber Hakami 2BCDEF , Abdulwahab Khalid Hakami 2ABCDEFG , Abdulwahab M. Dighriri 2BCDEF , Salman Y. Hurubi 2BCDEF , Bassam Ali Hamdi 2BCDEF , Ahid Amer Alshahrani 3ACDEF , Ebrahim Fihaid Alsubaiy 4ACDEG , Abdullah Hasan Alshehri 4ACDEG , Mashael Abdullah AlNijaiban 5ACDEF

DOI: 10.12659/MSM.943237

Med Sci Monit 2024; 30:e943237

Table 4 Comparative differences in mean values showing the effect of various retentive features (taper, supplementary groove, and box) when used in 2 different provisional crown materials (milled/3D-printed) after cementing with 2 different provisional cements (conventional vs resin-modified non-eugenol).

FeatureGroupsMeanSDStandard errordft valueP value
Taper (Primary)10 degreesGp MC173.544.731.49914.898
Gp PC177.043.411.07
Gp MR1137.2610.453.3049−6.938
Gp PR1184.8519.006.01
20 degreesGp MC248.055.031.599−0.145
Gp PC248.405.641.78
Gp MR2116.514.631.469−16.115
Gp PR2201.1715.965.04
10 degrees versus 20 degreesGp MC173.544.731.49911.676
Gp MC248.055.031.59
Gp PC177.043.411.07913.744
Gp PC248.405.641.78
Gp MR1137.2610.453.30495.741
Gp MR2116.514.631.46
Gp PR1184.8519.006.019−2.079
Gp PR2201.1715.965.04
AuxiliaryGrooveGp MC2G47.682.972.8429−3.035
Gp PC2G54.786.772.14
Gp MR2G104.208.992.84921.445
Gp PR2G277.2323.887.55
BoxGp MC2B48.972.202.999−9.374
Gp PC2B77.919.513.00
Gp PR2B328.8436.8711.6917.031
Gp MR2B123.859.462.99
Gp – groups or subgroups; SD – standard deviation; df – degree of freedom; t – ratio of difference in means; P – probability.
Basis of Grouping – First alphabet represents type of provisional restoration [M – milled, P – printed (3D)], Second alphabet represents provisional cement type [C – conventional (TempBond NE), R – resin modified (ProviTemp NE)], third alphabet represents degree of taper [1 – 10 degrees, 2 – 20 degrees] and last alphabet represents additional retentive feature [G – buccal groove, B – mesial box].

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750