Análise computacional da cor da gengiva no sector anterior maxilar

Abstract

Introduction: In addition to the color of teeth, gingiva color has a very important role in the prosthetic rehabilitation of the anterior maxillary sector, when the replacement of missing soft tissue is necessary. The color of the periodontal tissue is not easy to define, varying shades of pink for more reddish or brownish, for example. Taking into account the difficulty of characterising the gum color, the objective set on this study was to determine the color of attached gum, transition zone and free gum in Caucasians individuals. Methodology: The procedure was made with the help of questionnaires. From these, demographic, eating habits and oral hygiene data of the participants were collected. The sample consisted of 50 individuals, of which 30 (60%) were female and 20 (40%) were male. Front intraoral photographs of all of them were taken and later analyzed by Adobe Photoshop® software, collecting data for a range of colors (CIELab). Results: It was found that the gender influences the change of gum color. When evaluated by the CIELab scale, men have larger amounts of yellow and less of blue. Tobacco consumption reduces gums brightness. According to the statistic analysis, dental hygiene doesn't influence gum color. The relationship between the use of prosthetic devices and the coffee consumption and their influence in gum color couldn't be accessed on this study. Conclusion: The gender, the tobacco and acidic foods consumption influences the color of the gingiva. We must alert patients for the aesthetic consequences of their excessive consumption.

Date of Award	14 Sept 2016
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Tiago Marques (Supervisor) & André Correia (Co-Supervisor)