Background: Systemic conditions can influence orthodontic tooth movement. This study evaluates histologic periodontal responses to orthodontic tooth movement in diabetes-induced rats with or without periodontal disease.
Methods: Forty Wistar rats were divided according their systemic condition (SC) into diabetic (D) and non-diabetic (ND) groups. Each group was subdivided into control (C), orthodontic tooth movement (OM), ligature-induced periodontitis (P) and ligature-induced periodontitis with orthodontic movement (P+OM) groups. Diabetes mellitus (DM) was induced with alloxan monohydrate, and after 30 days, the P group received a cotton ligature around their first lower molar crown. An orthodontic device was placed in OM and P+OM groups for 7 days, and the animals were then euthanized.
Results: Differences in OM between D and ND groups were not significant (6.87± 3.55 mm and 6.81 ± 3.28 mm, respectively), but intragroup analysis revealed statistically significant differences between the P+OM groups for both SCs. Bone loss was greater in the D group (0.16 ± 0.07 mm ) than in the ND group (0.10 ± 0.03 mm ). In intragroup analysis of the D condition, the P+OM group differed statistically from the other groups, while in the ND condition, the P+OM group was different from the C and OM groups. There was a statistically significant difference in bone density between D and ND conditions (18.03 ± 8.09% and 22.53 ± 7.72%) in the C, P, and P+OM groups.
Conclusion: DM has deleterious effects on bone density and bone loss in the furcation region. These effects are maximized when associated with ligature-induced periodontitis with orthodontic movement.
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http://dx.doi.org/10.1002/JPER.17-0190 | DOI Listing |
Orthod Craniofac Res
December 2024
Department of Orthodontics, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
Objectives: To investigate maxillary canine movement accuracy and anchorage during space closure in first premolar extraction cases (maximum anchorage) using In-House Clear Aligners (IHCAs).
Materials And Methods: A randomised controlled trial with a split-mouth design recruited 16 adults in university setting. Each patient was randomly assigned by side for canine retraction using 12 IHCAs to both the experimental palatal power arm (Pa) and non-Pa control (C).
Stem Cells Transl Med
December 2024
Department of Orthodontics, Division of Craniofacial and Molecular Genetics, Tufts University School of Dental Medicine, Boston, MA 02111, United States.
The use of dental implants to replace lost or damaged teeth has become increasingly widespread due to their reported high survival and success rates. In reality, the long-term survival of dental implants remains a health concern, based on their short-term predicted survival of ~15 years, significant potential for jawbone resorption, and risk of peri-implantitis. The ability to create functional bioengineered teeth, composed of living tissues with properties similar to those of natural teeth, would be a significant improvement over currently used synthetic titanium implants.
View Article and Find Full Text PDFDent J (Basel)
December 2024
Section of Preventive and Pediatric Dentistry, Department of Orthodontics, Jena University Hospital, 07743 Jena, Germany.
Along with the long-term sequelae of preterm birth for general health, oral health is potentially influenced by prematurity due to developmental and behavioral peculiarities. This study aimed to compare oral health parameters in the mixed dentition of prematurely and full-term born children. Dental caries, developmental defects of enamel (DDE), and gingival inflammation were assessed in 7-to-9-year-old children ( = 38) born preterm (PT) compared to a matched control group born full-term (FT) in Germany.
View Article and Find Full Text PDFDent J (Basel)
December 2024
Department of Oral and Maxillofacial Sciences, School of Dentistry, Sapienza University of Rome, 00161 Rome, Italy.
Mandibular molar distalization is a complex orthodontic movement due to anatomic and biomechanical limitations. The opportunity to use a custom-made appliance with skeletal anchorage should be an advantageous alternative to traditional solutions: multiple extractions, interproximal reductions, vestibular inclination of incisal group. : A 14-year-old female patient with Class II malocclusion and ectopic upper and lower canines was treated in the lower arch with a custom-made appliance anchored on a mini-screw in the right buccal-shelf where the ectopy and crowding was severe.
View Article and Find Full Text PDFDent J (Basel)
December 2024
Dental Division, Shamir (Assaf Harofeh) Medical Center, Zerifin 70300, Israel.
In everyday dentistry, lithium disilicate is a valid option for single-fix partial dentures, and this material crystallization process is available with two protocols: long and short. This study's aim was to assess the effects of these two different crystallization protocols, long and short, on the marginal gap of lithium disilicate single crowns. A total of 24 abutment plastic teeth were scanned using an intra-oral scanner.
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