Yours, Etc.: Origins and Uses of 8 Sign-Offs
mesiocervical me·si·o·cer·vi·cal (mē'zē-ō-sûr'vĭ-kəl, -sē-)
Relating to the line angle of a tooth cavity preparation at the junction of the mesial and cervical walls.
Relating to the area of a tooth at the junction of the mesial surface and the cervical region.