title: Re: Periodontal evaluation in patients undergoing maxillary expansion.
authors: B L
authors: BL
authors: Eppley
mesh_terms: D005889:Gingival Recession / Q000209:etiology*; D006801:Humans; D019647:Oral Surgical Procedures / Q000009:adverse effects*; D010155:Palatal Expansion Technique / Q000009:adverse effects*