State of Dentition Among Twins Considering the Influence of Genetic and Environmental Factors: The Systematic Review of the Literature

Differences in the dentition pattern in monozygotic twins based on panoramic examinations – case report on two pairs of twins

“…Mirror imaging effect has been observed in the study involving oral cavities of monozygotic twins. This effect has been seen in morphology and measurements of the teeth [12]. Mirror imaging effect indicates that certain features occur in a specific pair on the opposite sides of the body, i.e.…”

“…Mirror imaging effect indicates that certain features occur in a specific pair on the opposite sides of the body, i.e. one of the twins seems to be a mirror image of another [12,17]. Regarding the differences in shape, number and length of the palatal rugae, both twins showed the same shapes for all palatal rugae, except for the second one on the left side.…”

“…However, the differences in mutual arrangement of the upper and lower incisors and their positions relative to the bone base have also been reported. Monozygotic twins also disclose a phenomenon of mirror imaging effect [12][13][14]. The researchers agree that monozygotic twins normally do not have the same type of cleft palate defect.…”