Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2016-03-29, 15:23:51 | version 1.38.0
41 cosmetic dentistry 1 2016 cosmetic procedures AACD survey indicates digital push in cosmetic dentistry colour assessment Study evaluates accuracy of digital v. conventional shade measurement Thefieldofcosmeticdentistryisshowingpersistent growth potential, a survey conducted by the Amer- ican Academy of Cosmetic Dentistry (AACD) has found. The majority of respondents believed that cosmetic procedures will generate the same amountofrevenueormoreinthecomingyear,with thegreatestexpectationbeingthatdentalimplants will continue to see the most positive growth. “Someofthemostnotablefindingsfromthesurveyare thosethatrelatetolargertrendsinthedentalindustry,” remarkedAACD President Dr Joyce Bassett.This par- ticularly applies to the ongoing trend towards digita- lization in dentistry. Bassett said,“The digital push is definitelysomethingbeingfeltintheareaofcosmetics –morethan50percentofrespondentssaidtheyeither currently use chairside CAD/CAM or are considering purchasing a chairside CAD/CAM system.” In the survey, 93 per cent of dental professionals believed that the continued demand for cosmetic dentistry is primarily driven by referrals from friends and family who have had a positive experi- ence. Other factors included increasing informa- tion about cosmetic dentistry online (75 per cent), better marketing of dental practices (63 per cent), and media coverage of cosmetic dentistry (56 per cent). Concerning the most frequently performed cos- metic procedures, crowns and bridgework, bond- ing, veneers, and whitening made up the bulk of interventions. At 32 per cent, the most popular treatment in practices was tooth whitening. According to the practitioners surveyed, patients requested cosmetic treatment mainly to improve physical attractiveness and self-esteem (86 per cent); to fix a previously failed cosmetic treatment (51percent);forupcomingevents,suchasawed- ding(48percent);forrestorativeorhealthreasons, such as an accident or injury (46 per cent); and to look and feel younger (45 per cent). The survey was conducted between September andNovember2015.Itincluded360dentalprofes- sionals,ofwhom89percentdescribedthemselves as either general dentists (60 per cent) or cosmet- ic dentists (29 per cent). Among the respondents, 74 per cent were AACD members. Theacademyhasconductedthebiennialsurveyon thestateoftheindustrysince2005.Thefullreport, titled Cosmetic Dentistry: State of the Industry, Survey 2015, is available at www.aacd.com. Matching the shade of the natural dentition is of great importance for achieving a good aesthetic result in prosthetic reconstructions, especially in the anterior region. Although various computer- based shade determination systems have been developed in recent years, the use of this new technology has not been widely evaluated in clinical settings. A study has now compared the reliability of two digital shade measurement solutions with the conventional method for colour assess- ment, the human eye. In the study, researchers from the Universi- tyofCopenhageninDenmarkandtheSaints Cyril and Methodius University in Skopje compared3Shape’sTRIOSshademeasure- ment tool, MHT’s SpectroShade spectro- photometric computer-based system and VITA Zahnfabrik’s VITA Toothguide 3D-MASTER, a con- ventional colour tab system. According to the researchers, reliable visual shade selection by the human eye can be inconsistent owingtothecomplexityoftoothcolourandexternal factors, such as room lighting, patient clothing and even make-up. In order to compensate for these variables, the shade determination was performed innaturaldaylight,butawayfromwindowsandwith no direct light. Lipstick or other factors that may affect colour assessment were removed, and pa- tients with brightly coloured clothing were covered with a neutral cloth. Shade determination was tested on 87 teeth in 29patientsbetweentheagesof22and62.Inorder to validate the various methods, two dentists se- lected the colour tab they considered to be the best match for each tooth and with each method. The colour tabs chosen were then evaluated pairwise. The study found that the reliability of the computer- based systems was higher than that of the conventional visual system. The TRIOS measurement system achieved the greatest agreement for colour chroma and hue, where- as SpectroShade demonstrated the highest agreement for colour value. However, no sig- nificant differences were found between the TRIOS tool and the colour tab system and be- tweenSpectroShadeandthecolourtabsystem. According to the researchers, the results support the use of computer-based scanning andshademeasurementsystemsfordentist- ry. They concluded that further development ofsuchsystemsforclinicalusecouldbevaluablefor material selection and restoration design, particu- larly in aesthetic and restorative dentistry. The study titled Effectiveness of shade measure- ments using a scanning and computer software system:Apilotstudywaspublishedon25April2015 intheInternationalJournalofOralandDentalHealth. © Pavel Ilyukhin © faysal dentistry 12016