Context: Orthodontic force causes the compression of the periodontal ligament in inhibiting vascularization on the pressure side of orthodontic tooth movement (OTM), while on the opposite side, the periodontal ligament is stretched. Hyperbaric oxygen therapy (HBOT) can increase the dissolved oxygen in the blood, which can affect the tissue regeneration of the periodontal ligament. Aims: To evaluate the effect of HBO 2.4 absolute atmospheres (ATA) for 3 × 30 minutes with 5 minutes interval for 7 days as an adjuvant therapy to accelerate periodontal ligament remodeling during OTM in Cavia cobaya. Methods: The study was an experimental laboratory research with a completely randomized design. Twenty-four males C. cobaya were divided into three groups, (X1) as the control group, (X2) as the group with orthodontic force, and (X3) as the group with orthodontic force followed by HBO 2.4 ATA. Matrix Metalloproteinase (MMP)-8 and Transforming Growth Factor (TGF)-β expressions were measured by using immunohistochemistry. OTM was then examined by applying linear distance and analyzed by employing ratio test (p<0.05). Results: Ratio analysis shows HBO 2.4 ATA for 3 × 30 minutes once a day with 5 minutes intervals for 7 days has increased MMP-8 expressions in the pressure area and TGF-β in the tension area (p<0.05). Conclusions: HBO 2.4 ATA for 3 × 30 minutes once a day for 7 with 5 minutes intervals is able to effectively accelerate the periodontal ligament remodeling process expressed by the increased expression MMP-8, especially within the pressure area and TGF-β in the tension area.
Background: Maxillary canines play a critical point in creating an aesthetic smile as they support the part of facial muscle. Canines are also the second most frequently impacted teeth after the third molars. In some cases, it is possible to retract canines into their correct position by orthodontics treatment. Purpose: This article highlighted a treatment option with surgical exposure, in which a maxillary canine was impacted. It presented gradual steps from pre-surgical to post-surgical orthodontic treatment. Case: A 16 years old female patient referred to Orthodontic Department by Oral Surgeon for pre-surgical orthodontic treatment of her impacted maxillary canine. Case Management: After pre-surgical orthodontic treatment, the impacted canine was surgically exposed by closed technique since open surgical exposure might need excessive removal of the surrounding bone. Traction was given through a gold chain which attached to the palatal surface of the impacted canine. The tooth was ideally positioned with fixed orthodontic appliances. The permanent right maxillary canine was successfully positioned into proper alignment with the remaining teeth. Aesthetic smile was improved. Conclusion: Malocclusion with impacted canine was successfully treated with MBT orthodontic prescription combined with gold chain that can retract the impacted canine into its physiological position and the patient was satisfied with the aesthetic result.
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Objectives Studies associated with deaf children's malocclusion and their treatment need are still very rare. Therefore, cephalometric analysis with the ability to access the skeletal, dental, and soft tissues can be used to score the severity of malocclusion and index of orthodontic treatment need (IOTN) in deaf children. This study examined the use of cephalometric analysis, severity malocclusion, and orthodontic treatment need in deaf students at special need school type B (SLB-B) Tunarungu Karya Mulia in Surabaya using IOTN along with investigating IOTN correlation with the result of dental cephalometric analysis and dental health component (DHC) and aesthetic component (AC) in IOTN index. Material and Methods Sample data consisted of 33 students between the ages of 8 to 12 years old and never had any orthodontic treatment. This investigation applied the indices from IOTN, in which DHC had 10 malocclusions, and AC with the aesthetic anterior dentition comprising 10 color photographs and different dental attractiveness levels. In addition, scores were chosen from the worst feature, with the data analyzed at a significant correlation test of 0.05%. Result There was no skeletal abnormality in deaf children. It displayed the highest number of malocclusion severity scores, while the DHC assessment showed the moderate and severe categories. Based on AC evaluation, the highest numbers of malocclusion severity were found in good and moderate category in terms of teeth arrangement and aesthetic. Conclusion There was a correlation between the dental cephalometric analysis in deaf children and treatment need using IOTN with AC and DHC.
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