The aim of the study is to evaluate the effect of feather edge finish line and deep chamfer finish line on gingival position, bleeding on probing and marginal adaptation.
The aim of the study is to evaluate the effect of feather edge finish line and deep chamfer finish line on gingival position, bleeding on probing and marginal adaptation. Gingival bleeding on probing will be evaluated before treatment. Preparation for all ceramic full coverage restoration will be performed according to manufacturer instructions by one operator. Type of finish line (whether feather edge or deep chamfer finish line) will be selected randomly according to a computer generated randomization list. Restorative margins will be placed subgingivally. Zirconia crowns will be fabricated for the prepared teeth and cemented using resin luting agent. At 6 months and 12 months after the cementation, restorative margin position relative to the gingival margin will be recorded. Bleeding on probing and marginal adaptation will also be recorded.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
30
Tooth preparation with feather edge finish line will be done to posterior teeth to receive all ceramic full coverage zirconia crowns.
Tooth preparation with deep chamfer finish line will be done to posterior teeth to receive all ceramic full coverage zirconia crowns.
Position of the margin of the restoration in relation to the gingival margin position
Scoring proposed by Paniz et al classified into either subgingival (not visible), equigingival (slightly visible) and supragingival (visible)
Time frame: 1 year
Bleeding on probing
Scoring following Ainamo and Bay gingival bleeding index
Time frame: 1 year
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