title: Evaluation of Pulp Chamber Dimensions of Primary Molars From Bitewing Radiographs.
abstract: OBJECTIVE
  The purpose of this study was to measure key anatomic landmarks related to pulp chamber morphology in primary maxillary and mandibular first and second molars.
  
  
  METHODS
  Bitewing radiographs of 42 subjects were taken under standardized conditions using a millimeter X-ray grid. One hundred fifty-three primary molars (44 maxillary first molars, 49 maxillary second molars, 30 mandibular first molars, and 30 mandibular second molars) were analyzed for the required anatomic landmarks using Image J Analysis Software. The data were analyzed in terms of mean, standard deviation, and coefficient of variance for each measurement. Mean measurements were compared using one-way analysis of variance followed by Tukey's post-hoc HSD test.
  
  
  RESULTS
  The distance between cusp tip to pulp chamber ceiling was approximately four mm, the distance between pulpal floor to furcation was approximately 1.7 mm, and the average height of the pulp chamber was observed to be in the range of two to three mm.
  
  
  CONCLUSIONS
  The key measurements involved in access cavity preparation were consistent across the different types of primary molars.
authors: Department of Paedodontics and Preventive Dentistry, Manipal College of Dental Sciences-Mangalore, Manipal University, Manipal, Karnataka, India.
authors: Suhel
authors: S
authors: Dabawala
authors: Department of Paedodontics and Preventive Dentistry, Manipal College of Dental Sciences-Mangalore, Manipal University, Manipal, Karnataka, India. varghesetvm@yahoo.co.in.
authors: Varghese
authors: V
authors: Chacko
authors: Department of Paedodontics and Preventive Dentistry, Manipal College of Dental Sciences-Mangalore, Manipal University, Manipal, Karnataka, India.
authors: B S
authors: BS
authors: Suprabha
authors: Department of Paedodontics and Preventive Dentistry, Manipal College of Dental Sciences-Mangalore, Manipal University, Manipal, Karnataka, India.
authors: Arathi
authors: A
authors: Rao
authors: Department of Oral Pathology and Microbiology, Manipal College of Dental Sciences-Mangalore, Manipal University, Manipal, Karnataka, India.
authors: Srikant
authors: S
authors: Natarajan
authors: Department of Oral Medicine and Radiology, Manipal College of Dental Sciences-Mangalore, Manipal University, Manipal, Karnataka, India.
authors: Ravikiran
authors: R
authors: Ongole
mesh_terms: D059925:Anatomic Landmarks / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D003786:Dental Pulp Cavity / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008334:Mandible / Q000000981:diagnostic imaging; D008437:Maxilla / Q000000981:diagnostic imaging; D008963:Molar / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D009811:Odontometry / Q000379:methods; D016300:Radiography, Bitewing / Q000379:methods*; D019252:Radiography, Dental, Digital / Q000379:methods; D019228:Tooth Crown / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D014092:Tooth Root / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D014094:Tooth, Deciduous / Q000033:anatomy & histology / Q000000981:diagnostic imaging*