跳至主要内容

The Color of Natural Teeth Investigated by Visual Perception and Spectrophotometer

Read  full  paper  at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53658#.VM8m5izQrzE

ABSTRACT
The advantage of electronic devices is to eliminate the subjectivity. Based on individual capabilities, visual perception has its disadvantages. The aim of this study was to find out the possible shade difference between the upper and lower teeth, visual perception versus spectrophotometry as well as proving that females are better in visual perception of colour matching. 82 subjects (dental students) of this study determined the color of each other’s natural teeth. The color of 1640 teeth (incisors, canines and premolars), was matched by visual perception and by Vita Easyshade spectrophotometer. The matching was focused on the middle third of buccal surfaces of the examined teeth. In this study, it was found that there was a difference of color between the teeth of the upper and lower jaw. The percentage of the accordance between two methods was 28.35% for all examined teeth. The color determination at central incisors showed the highest value of accordance 40.85%. Based on Vitapan 3D Mastershade, the most frequent color was 2M2.
 
Cite this paper
Pustina-Krasniqi, T. , Bytyçi, A. , Bicaj, T. , Ahmedi, E. , Dula, L. , Lila, Z. , Dragusha, A. and Ajeti, N. (2015) The Color of Natural Teeth Investigated by Visual Perception and Spectrophotometer. Open Journal of Stomatology, 5, 26-35. doi: 10.4236/ojst.2015.52005.
 
References
[1]Paravina, R.D. and Powers, J.M. (2004) Esthetic Color Training in Dentistry. St Louis, Mosby.
 
[2]Vaarkamp, J., ten Bosch, J.J. and Verdonschot, E.H. (1995) Propagation of Light through Human Dental Enamel and Dentine. Caries Research, 29, 8-13.
http://dx.doi.org/10.1159/000262033
 
[3]ten Bosch, J.J. and Coops, J.C. (1995) Tooth Color Reflectance as Related to Light Scattering and Enamel Hardness. Journal of Dental Research, 74, 374-380.
http://dx.doi.org/10.1177/00220345950740011401
 
[4]Tripodakis, A.P. (1989) Shade Selection in Fixed Prosthodontics. Odontostomatol Proodos, 43, 539.
 
[5]Bergen, S.F. (1985) Color in Esthetics. The New York State Dental Journal, 51, 470.
 
[6]Yorty, J.S., et al. (2000) A Simple Screening Test for Color Matching in Dentistry. General Dentistry, 48, 272.
 
[7]Donahue, J.L., et al. (1991) Shade Color Determination by Men and Women. The Journal of Prosthetic Dentistry, 65, 699-703.
http://dx.doi.org/10.1016/0022-3913(91)90209-F
 
[8]Paravina, R.D. (1999) Instrumental Color Matching Methods in Dentistry. Andrejevic Foundation, Belgrade.
 
[9]Davison, S.P. and Myslinski, N.R. (1990) Shade Selection by Color Vision—Defective Dental Personnel. The Journal of Prosthetic Dentistry, 63, 97-101.
http://dx.doi.org/10.1016/0022-3913(90)90276-I
 
[10]McMaugh, D.R. (1977) A Comparative Ability of the Colour Matching Ability of Dentists, Dental Students and Ceramic Technicians. Australian Dental Journal, 22, 165-167.
http://dx.doi.org/10.1111/j.1834-7819.1977.tb04482.x
 
[11]Wasson, W. and Schumann, N. (1992) Color Vision and Dentistry. Quintessence International, 23, 349-353.
 
[12]Moser, J.B., Wozniak, W.T., Naleway, C.A. and Ayer, W.A. (1985) Color Vision in Dentistry: A Survey. Journal of the American Dental Association, 110, 509-510.
 
[13]Barna, G.J., Taylor, J.W., King, G.E. and Pelleu, G.B. (1981) The Influence of Selected Light Intensities on Color Perception within the Color Range of Natural Teeth. Journal of Prosthetic Dentistry, 46, 450-453.
http://dx.doi.org/10.1016/0022-3913(81)90456-X
 
[14]Okubo, S.R., Kanawati, A., Richards, M.W. and Childress, S. (1987) Evaluation of Visual and Instrument Shade Matching. Journal of Prosthetic Dentistry, 80, 642-648.
 
[15]Roge, M. and Preston, J.D. (1987) Color, Light and the Perception of Form. Quintessence International, 18, 391-396.
 
[16]Pascual-Moscardo, A. and Camps-Alemany, I. (2006) Aesthetic Dentistry: Chromatic Appreciation in the Clinic and the Laboratory. Medicina Oral, Patología Oral y Cirugía Bucal, 11, E363-E368.
 
[17]Fani, G. and Vichi, A. (2007) Spectrophotometric and Visual Shade Selection Based of Two Shade Guide. American Journal of Dentistry, 20, 142-146.
 
[18]Ahmad, I. (2006) Protocols for Predictable Aesthetic Dental Restorations, 4th Chapter, Colour and Shade Analysis. Blackwell Munksgaard, Oxford, 77-97.
 
[19]Hugo, B., Witzel, T. and Klaiber, B. (2005) Comparison of in Vivo Visual and Computer-Aided Tooth Shade Determination. Clinical Oral Investigations, 9, 244-250.
 
[20]Culpepper, W.D. (1970) A Comparative Study of Shade-Matching Procedures. Journal of Prosthetic Dentistry, 24, 166-173.
http://dx.doi.org/10.1016/0022-3913(70)90140-X
 
[21]Paul, S., Peter, A., Pietrobon, N. and Hammerle, C.H.F. (2002) Visual and Spectrophotometric Shade Analysis of Human Teeth. Journal of Dental Research, 81, 578-582.
 
[22]Klemetti, E., Matela, A.M., Haag, P. and Kononen, M. (2006) Shade Selection Performed by Novice Dental Professionals and Colorimeter. Journal of Oral Rehabilitation, 33, 31-35.
http://dx.doi.org/10.1111/j.1365-2842.2006.01531.x
 
[23]Sykora, O. (1983) Fabrication of a Posterior Shade Guide for Removable Partial Dentures. Journal of Prosthetic Dentistry, 50, 287-288.
http://dx.doi.org/10.1016/0022-3913(83)90033-1
 
[24]Goodkind, R.J. and Schwabacher, W.B. (1987) Use of a Fiber-Optic Colorimeter for in Vivo Measurements of 2,830 Anterior Teeth. Journal of Prosthetic Dentistry, 58, 535-542.
http://dx.doi.org/10.1016/0022-3913(87)90380-5
 
[25]Li, Q. and Wang, Y.N. (2007) Comparison of Shade Matching by Visual Observation and an Intraoral Dental Colorimeter. Journal of Oral Rehabilitation, 34, 848-854.
http://dx.doi.org/10.1111/j.1365-2842.2006.01678.x
 
[26]Donahue, J.L., Goodkind, R.J., Schwabacher, W.B. and Aeppli, D.P. (1991) Shade Color Determination by Men and Women. Journal of Prosthetic Dentistry, 65, 699-703.
http://dx.doi.org/10.1016/0022-3913(91)90209-F
 
[27]Judeh, A. and Al-Wahadni, A. (2009) A Comparison between Conventional Visual and Spectrophotometric Methods for Shade Selection. Ajman University of Science & Technology, Ajman.              eww150202lx

评论

此博客中的热门博文

A Comparison of Methods Used to Determine the Oleic/Linoleic Acid Ratio in Cultivated Peanut (Arachis hypogaea L.)

Cultivated peanut ( Arachis hypogaea L.) is an important oil and food crop. It is also a cheap source of protein, a good source of essential vitamins and minerals, and a component of many food products. The fatty acid composition of peanuts has become increasingly important with the realization that oleic acid content significantly affects the development of rancidity. And oil content of peanuts significantly affects flavor and shelf-life. Early generation screening of breeding lines for high oleic acid content greatly increases the efficiency of developing new peanut varieties. The objective of this study was to compare the accuracy of methods used to classify individual peanut seed as high oleic or not high oleic. Three hundred and seventy-four (374) seeds, spanning twenty-three (23) genotypes varying in oil composition (i.e. high oleic (H) or normal/not high oleic (NH) inclusive of all four peanut market-types (runner, Spanish, Valencia and Virginia), were individually tested ...

Location Optimization of a Coal Power Plant to Balance Costs against Plant’s Emission Exposure

Fuel and its delivery cost comprise the biggest expense in coal power plant operations. Delivery of electricity from generation to consumers requires investment in power lines and transmission grids. Placing a coal power plant or multiple power plants near dense population centers can lower transmission costs. If a coalmine is nearby, transportation costs can also be reduced. However, emissions from coal plants play a key role in worsening health crises in many countries. And coal upon combustion produces CO 2 , SO 2 , NO x , CO, Metallic and Particle Matter (PM10 & PM2.5). The presence of these chemical compounds in the atmosphere in close vicinity to humans, livestock, and agriculture carries detrimental health consequences. The goal of the research was to develop a methodology to minimize the public’s exposure to harmful emissions from coal power plants while maintaining minimal operational costs related to electric distribution losses and coal logistics. The objective was...

Evaluation of the Safety and Efficacy of Continuous Use of a Home-Use High-Frequency Facial Treatment Appliance

At present, many home-use beauty devices are available in the market. In particular, many products developed for facial treatment use light, e.g., a flash lamp or a light-emitting diode (LED). In this study, the safety of 4 weeks’ continuous use of NEWA TM , a high-frequency facial treatment appliance, every alternate day at home was verified, and its efficacy was evaluated in Japanese individuals with healthy skin aged 30 years or older who complained of sagging of the facial skin.  Transepidermal water loss (TEWL), melanin levels, erythema levels, sebum secretion levels, skin color changes and wrinkle improvement in the facial skin were measured before the appliance began to be used (study baseline), at 2 and 4 weeks after it had begun to be used, and at 2 weeks after completion of the 4-week treatment period (6 weeks from the study baseline). In addition, data obtained by subjective evaluation by the subjects themselves on a visual analog scale (VAS) were also analyzed. Fur...