Tooth Shade Relationship with Age, Gender, and Skin Color in a Saudi Population: A Cross-Sectional Study

Abstract

Objectives: The aim of this study was to assess the relationship between tooth shade among different groups of patients according to their age, gender, and skin color in a Saudi population. Materials and methods:Participants were divided based on age into Group 1 (10–20 years), Group 2 (21–30 years), Group 3 (31–40 years), and Group 4 (41+ years), and according to gender. Tooth shade was measured by Vita easyshade, Shade scanner, 3D Master shade system. The skin color was determined according to the Firzpatrick Scale. It consists of six shades, namely: I, II, III, IV, V, and VI. The skin complexion of the participants was divided into six categories: white/very fair, fair, light brown, moderate brown, dark brown, and black. Results: One hundred and ninety-eight individuals were recruited. Around 70% were males. Females had 25.4% A2 followed by 22% A1, and 22% A3 shade types, while males had B3 shade (18%) followed by A2 and A3 (15.8%). A statistically significant difference was observed between shade and gender (p < 0.05). A statistically significant difference was observed between shade and age group (p < 0.05), where increased age was correlated with darker teeth shades. Shade A1 was correlated with type I skin color in 57.1% of individuals. Skin color type II had A2 as a dominant shade by 34.1%. A2 and A3 shades were equally observed in skin color III by 20.3%. Overall, statistically significant differences were observed between shade and skin color groups (p < 0.05). Conclusions: In conclusion, the most frequent classical shade noted among male and female participants was shade type A, which represents reddish brownish. Group 2 (21–30 years) had the B3 shade as the most prominent shade type among age groups. Gender, age, and skin types all showed a significant relation with the tooth shade.

Evaluation of microhardness of short fiber-reinforced composites inside the root canal after different light curing methods – An in vitro study

“…A root canal treated, partially decoronated maxillary central incisor typodont was selected for this investigation in order to standardize cavity size and depth in all specimens. The typodont is fabricated from an A2 shade material which is one of the most common shades for human teeth [36]. According to the manufacturer optical properties are similar to natural teeth.…”

“…According to the manufacturer optical properties are similar to natural teeth. These teeth serve as a standardized scaffold for such a measurement as natural teeth sizes, shades and refractive indices may vary on a large scale [36,37]. Therefore such level of standardization could not have been carried out using natural teeth.…”

Does age determine the lightness and darkness of tooth shades? A retrospective study

“…proved that patients under the age group of 41 years or more predominantly had A3 shade, whereas the majority with the age of between 21 and 30 years showed B3 shade. [ 18 ] Similarly, a study proved that the common tooth shade in elderly people was A3.5. [ 19 ] All the above-mentioned results of various studies were found to be consistent with the findings of the current study.…”