title: Relationship of the lingual frenum to the mandibular central incisors.
abstract: CONCLUSIONS
  The purpose of this study is to record the vertical distance between anterior attachment of lingual frenum and incisal edge of mandibular central incisors in dentulous subjects and then determine the mean vertical distance and to suggest guidelines for positioning of mandibular central incisors in complete dentures.
  
  
  METHODS
  In this study, 150 dentulous subjects (75 males and 75 females) were chosen based on predecided inclusion criteria. A mandibular cast was obtained from irreversible hydrocolloid impression in modified stock trays for each subject. All subjects were instructed to elevate the tongue while the impressions were made. The vertical distance between the anterior attachment of the lingual frenum and incisal edges of mandibular central incisors was measured on the casts and then the values were statistically analyzed.
  
  
  RESULTS
  The distance between anterior attachment of lingual frenum (AALF) mesioincisal edge of mandibular central incisor (CI) in male, female and total (male + female) subjects was measured. In males it ranged from 7.3 to 8.9 mm with mean (±SD) 8.29 ± 0.36 mm while in females it ranged from 7.1 to 9.0 mm with mean (±SD) 8.21 ± 0.38 mm.
  
  
  CONCLUSIONS
  It is believed that the application of this anatomic relation can provide a reliable point for arranging and checking the position of the mandibular central incisors for complete dentures in patients with class I ridge relationship.
authors: Professor, Department of Prosthodontics, Babu Banarasi Das College of Dental Sciences, Babu Banarasi Das University, Faizabad Road, Lucknow, India.
authors: Swati
authors: S
authors: Gupta
authors: Consultant, Private Clinic, Faizabad Road, Lucknow, India.
authors: Sanchit
authors: S
authors: Garg
authors: Babu Banarasi Das College of Dental Sciences, Babu Banarasi Das University, Faizabad Road, Lucknow, India.
authors: Amrit
authors: A
authors: Tandan
authors: Babu Banarasi Das College of Dental Sciences, Babu Banarasi Das University, Faizabad Road, Lucknow, India.
authors: Ravi
authors: R
authors: Dwivedi
authors: Babu Banarasi Das College of Dental Sciences, Babu Banarasi Das University, Faizabad Road, Lucknow, India.
authors: Narendra Kumar
authors: NK
authors: Gupta
authors: Babu Banarasi Das College of Dental Sciences, Babu Banarasi Das University, Faizabad Road, Lucknow, India.
authors: Garima
authors: G
authors: Agarwal
keywords: Complete denture; Edentulous; Lingual frenum; Mandibular central incisors