The film 'Teeth, 2007' does not feature any identifiable LGBTQ+ characters or themes. The narrative centers on a young boy's unique challenge of having adult teeth on his first day of school, without any elements related to queer identity.

The film 'Teeth' (2007) focuses on a horror-comedy narrative about a protagonist with vagina dentata. There are no identifiable transsexual characters or themes present in the movie's plot or character arcs. Therefore, the film does not offer any portrayal, positive or negative, of transsexual individuals or experiences.

The movie does not contain any action or adventure elements.

The film "Teeth" (2007) appears to be an original work with no specified source material, prior adaptations, or historical figures. Therefore, its characters are considered new and original, and there is no established baseline to determine a gender swap.

The provided information does not indicate that "Teeth, 2007" is an adaptation of a prior work with pre-established characters or historical figures. Therefore, no characters can be identified as having undergone a race swap according to the definition.