Side of action of muscle selanant is________?

A 15-year old boy shows an inverted pear shaped radiolucency between the upper central incisors. The teeth are normal in all aspects The most likely diagnosis is________?

1st formed dental tissue________?

Most importent compansatory mechanism in metabolic acidosis________?

All of the following statement about antimalarial drugs are correct except________?

Glossy smooth margins of a casting are due to________?