Subjective Differences between Dentists and Patients about Relative Quality of Metal Ceramic Restorations placed in the Esthetic Zone.
BACKGROUND
Esthetic perceptions could differ between the dentist and his patients among various regions and cultures.


OBJECTIVE
The aims of this study were to evaluate the subjective differences between the dentist and the patient in terms of esthetics of metal-ceramic crowns (MCcs). The study also aims to compare the mesiodistal (MD) and buccolingual (BL) dimensions of the cemented crown with its respective natural antimeric tooth.


METHODS
A total of 85 patients seeking treatment for a single crown (MC) were treated by the undergraduate students under supervision of respective academic staff. After cementation of the crowns, a 9-point questionnaire was given to patient and different dentists. A treatment cast for every single crown was poured. Then, the MD and BL dimensions of the crowns were compared against their respective antimeric tooth.


RESULTS
The dentists and the patients agreed in the range of 50.5 to 90.5%. Least subjective differences were found for the length and width of the cemented crowns. The highest differences were noted for symmetry between the cemented crown and its antimeric natural tooth. A total of 31 to 38% of the patients differed from the dentist's evaluation for shade of the crown, color of the crown at the margin, contour of the crown, and the relationship of the crowns with the surrounding gingiva. The highest MD and BL dimensions were in the cemented crown of canines, while the lowest MD and BL diameters were for the cemented crowns of the lateral incisor crowns.


CONCLUSIONS
Dentist and patient mostly agreed in terms of length (90%), width (81%) and relation of crown with free gingiva (74%). However, they differed mostly on the symmetry of the cemented crowns. The highest MD dimensions and BL diameter were in the cemented MCcs of canine, while the lowest were with lateral incisors.


CONCLUSIONS
While fabricating a dental prosthesis, the dentist must know about patients' perception of esthetics; otherwise both clinical and laboratory efforts would not be enough to satisfy the esthetic needs of the patient even if the restoration is technically correct. Perceptions related to symmetry differ mostly between dentist and patient.
Department of Prosthetic, Dental Sciences, College of Dentistry, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia, e-mail: drmoaleem2014@gmail.com.
Mohammed M
MM
Al Moaleem
Department of Prosthetic, Dental Sciences, College of Dentistry, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia.
Faisal M
FM
Alkhayrat
Department of Prosthetic, Dental Sciences, College of Dentistry, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia.
Hussam A
HA
Madkhali
Department of Prosthetic, Dental Sciences, College of Dentistry, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia.
Ibrahim H
IH
Geathy
Department of Prosthetic, Dental Sciences, College of Dentistry, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia.
Mohammed Aw
MA
Qahhar
Department of Prosthetic, Dental Sciences, College of Dentistry, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia.
Ahmed
A
Yaqoub
Department of Prosthetic, Dental Sciences, College of Dentistry, Jazan University, P.O. Box 114, Jazan, Kingdom of Saudi Arabia.
Khurshid A
KA
Mattoo
D002484:Cementation; D003116:Color; D003430:Cross-Sectional Studies; D003442:Crowns; D017267:Dental Prosthesis Design; D003815:Dentists / Q000523:psychology*; D004955:Esthetics, Dental / Q000523:psychology*; D005881:Gingiva; D006801:Humans; D007180:Incisor; D016876:Metal Ceramic Alloys; D010361:Patients / Q000523:psychology*; D012529:Saudi Arabia; D011795:Surveys and Questionnaires; D019228:Tooth Crown
D016876:Metal Ceramic Alloys
Antimeric tooth; Dental porcelain; Dental symmetry Teeth proportions.