Three-Dimensional Evaluation of Alveolar Bone and Soft Tissue Dimensions of Maxillary Central Incisors for Immediate Implant Placement: A Cone-Beam Computed Tomography Assisted Analysis.
BACKGROUND
This study explored the relationship between the thickness of bone and soft tissue along the labial and palatal aspect of maxillary central incisors. The influence of overall socket width, labiopalatal positioning of the incisor on the bone, and soft tissue thickness were also investigated.


METHODS
This study used cone-beam computed tomography of 150 patients to determine labial, palatal soft and hard tissue thickness, labiopalatal (B-P) socket width and corelated the same to the labiopalatal positioning of maxillary central incisors.


RESULTS
Mean (SD) thicknesses of the labial soft tissue at cervical (C), midroot (M), and apical (A) locations and the corresponding bone thicknesses were 1.07 (0.28), 0.987 (0.27), 1.240 (0.41), and 0.928 (0.39), 0.894 (0.52), 1.57 (0.88), respectively. Similarly, palatal soft tissue and bone thicknesses at locations C, M, A were 1.807 (0.66), 1.557 (0.62), 1.639 (0.66), and 1.679 (0.62), 3.439 (1.28), 6.038 (1.63), respectively. Mean (SD) thicknesses of the B-P socket width at location C was 8.047 (0.963).


CONCLUSIONS
There is a positive correlation between the labial and palatal bone and corresponding soft tissue thickness, between thickness of the labial bone and the labiopalatal thickness of the alveolar socket. No correlation was observed between the thickness of the labial cortical bone and the labiopalatal positioning of the tooth.
*Professor and Post Graduate Guide, Department of Prosthodontics, M.A. Rangoonwala College of Dental Sciences and Research Centre, Pune, India. †Post Graduate Student, Department of Prosthodontics, M.A. Rangoonwala College of Dental Sciences and Research Centre, Pune, India. ‡Professor and Head of Department, Department of Oral Pathology and Microbiology, Dr. D. Y. Patil Dental College and Hospital, Pune, India. §MPhil Candidate, Oral Rehabilitation, Faculty of Dentistry, University of Hong Kong, Hong Kong; Professor, Department of Periodontology, Dr. D. Y. Patil Dental College and Hospital, Pune, India. ¶Clinical Associate Professor, Department of Oral & Maxillofacial Surgery, The Herman Ostrow School of Dentistry of USC, Los Angeles County/USC Medical Center, Los Angeles, CA. ‖Postgraduate student, Department of Prosthodontics, M.A. Rangoonwala College of Dental Sciences and Research Centre, Pune, India.
Mohit G
MG
Kheur
Nidhi R
NR
Kantharia
Supriya M
SM
Kheur
Aneesha
A
Acharya
Bach
B
Le
Tania
T
Sethi
D000539:Alveolar Process / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D015519:Bone Density / Q000502:physiology; D054893:Cone-Beam Computed Tomography / Q000379:methods*; D003757:Dental Implantation; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D007180:Incisor / Q000033:anatomy & histology*; D008437:Maxilla / Q000033:anatomy & histology*