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Bone Remodeling Surrounding Primary Teeth in the Maxilla and Mandible of Skeletally Immature Dogs

Randall, Letitia E.

Abstract Details

2010, Master of Science, Ohio State University, Dentistry.

Objective: The purpose of this study was to quantify the bone remodeling in the jaws of skeletally immature dogs, specifically in the bone surrounding fully erupted primary teeth. Information on skeletal turnover in a young age group is important to better understand bone metabolism during health and disease, growth and development, and tooth eruption.

Methods: Four skeletally immature (5 month old) beagle dogs were used to examine bone turnover. Thirty-two bone sections total were obtained bilaterally in each jaw from the bone supporting the primary molars of the maxilla and mandible. Histomorphometric methods were used to estimate the intracortical secondary osteonal remodeling. The following variables were calculated: mineral apposition rate (MAR, µm/day), mineralizing surface/bone surface (MS/BS, %), erosion surface/bone surface (ES/BS, %), and bone formation rate (BFR, %/year), and compared between jaws (maxilla vs mandible) and bone types (alveolar vs. basal). BFR, %/year was the variable of greatest interest as it can be compared to other data and includes mineral apposition rate and mineralizing surface in its calculation. These measurements were also compared to existing data from skeletally mature dogs (1-2 years).

Results: The mean (SD) BFR were as follows: Md. Alveolar: 44.10(26.89), Mx. Alveolar: 3.54(3.57), Md. basal: 22.65(14.65), Mx. basal: 12.33(7.11). The mandibular BFR was significantly (p<0.05) higher than the maxillary bone. The BFR of the alveolar bone of the skeletally immature dogs was not significantly (p=0.48) different from skeletally mature dogs.

Conclusion: The remodeling rate of alveolar bone in skeletally immature dogs was greater in the mandible than in the maxilla and remained constant between primary and permanent dentitions.

Sarandeep Huja, DDS, PhD, Associate Professor (Advisor)
Zongyang Sun, DDS, MS, MSD, PhD, Assistant Professor (Committee Member)
F. Michael Beck, DDS, MS (Committee Member)
75 p.

Recommended Citations

Citations

  • Randall, L. E. (2010). Bone Remodeling Surrounding Primary Teeth in the Maxilla and Mandible of Skeletally Immature Dogs [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268087680

    APA Style (7th edition)

  • Randall, Letitia. Bone Remodeling Surrounding Primary Teeth in the Maxilla and Mandible of Skeletally Immature Dogs. 2010. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1268087680.

    MLA Style (8th edition)

  • Randall, Letitia. "Bone Remodeling Surrounding Primary Teeth in the Maxilla and Mandible of Skeletally Immature Dogs." Master's thesis, Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268087680

    Chicago Manual of Style (17th edition)