Papers by Supatchai Boonpratham
Orthodontics and craniofacial research/Orthodontics & craniofacial research, Apr 25, 2024
Orthodontics and craniofacial research/Orthodontics & craniofacial research, Jan 30, 2024
Clinical and investigative orthodontics, Aug 31, 2023
American Journal of Orthodontics and Dentofacial Orthopedics, May 1, 2023
PubMed, Mar 1, 2007
While many studies reported the structural changes in the periodontal ligament (PDL) under hypofu... more While many studies reported the structural changes in the periodontal ligament (PDL) under hypofunctional conditions, the associations of cytokine growth factors are still unclear. They are known to take part in inflammation, and may affect the biological properties of hypofunctional tooth. To investigate the hypofunctional PDL and the recovery from this condition, we focused on interleukin-1 beta (IL-1beta) and basic fibroblast growth factor (FGF-2). Male Wistar rats were divided into occluded, non-occluded, and recovery groups. An anterior bite plate was used to eliminate the occlusal contact of molars in the non-occluded group, and was then removed for the recovery group. After occlusal stimuli were eliminated for 7 and 14 days, and after 3 and 7 days of recovery from 7 days in the hypofunctional condition, the PDLs of the lower first molars were investigated immunohistochemically. The lack of occlusal stimuli caused atrophic changes in the PDL with the upregulation of IL-1beta and decreased expression of FGF-2, while decreased IL-1beta and enhanced FGF-2 expression were observed in the recovery process. These results suggest that occlusal stimuli regulate IL-1beta and FGF-2 expression, and the nature of this regulation may differ from that in the healing process of an inflammatory reaction.
Journal of the Medical Association of Thailand, Feb 15, 2021
<jats:p>Pediatric obstructive sleep apnea (OSA) is a common breathing-related sleep disorde... more <jats:p>Pediatric obstructive sleep apnea (OSA) is a common breathing-related sleep disorder affecting 1% to 5% of children. It often presents with less recognized signs and symptoms compared to adult OSA. Consequently, many patients with pediatric OSA remain undiagnosed. Risk factors include adenotonsillar hypertrophy, craniofacial anomalies, retrognathia, nasal obstruction, macroglossia, nasal septal deviation, and obesity. Orthodontist as a healthcare provider could have a significant role in screening, diagnostic referral, and treatment. The management approach for pediatric OSA requires multidisciplinary collaboration to obtain an optimal treatment outcome. Currently, adenotonsillectomy is recommended as first-line therapy. However, the treatment success varies considerably among patients. Children with OSA are often found to have narrow and constricted maxilla, mandibular retrognathia, and posterior rotation of mandible. Therefore, orthodontic treatment such as rapid maxillary expansion (RME), functional jaw orthopedic appliances, and protraction facemask could improve pediatric OSA with proper case selections. Additional maxillary expansion can also be performed in conjunction with adenotonsillectomy regardless of treatment sequence. The present article reviewed the currently available literature on the efficacy of various orthodontic treatments on pediatric OSA. Additional high-quality evidence is required to further substantiate the effectiveness of these orthodontic therapy. Keywords: Pediatric OSA, Orthodontic treatment, Rapid Maxillary Expansion (RME), Functional jaw orthopedic appliances, Protraction facemask</jats:p>
Journal of medical and dental sciences, 2007
While many studies reported the structural changes in the periodontal ligament (PDL) under hypofu... more While many studies reported the structural changes in the periodontal ligament (PDL) under hypofunctional conditions, the associations of cytokine growth factors are still unclear. They are known to take part in inflammation, and may affect the biological properties of hypofunctional tooth. To investigate the hypofunctional PDL and the recovery from this condition, we focused on interleukin-1 beta (IL-1beta) and basic fibroblast growth factor (FGF-2). Male Wistar rats were divided into occluded, non-occluded, and recovery groups. An anterior bite plate was used to eliminate the occlusal contact of molars in the non-occluded group, and was then removed for the recovery group. After occlusal stimuli were eliminated for 7 and 14 days, and after 3 and 7 days of recovery from 7 days in the hypofunctional condition, the PDLs of the lower first molars were investigated immunohistochemically. The lack of occlusal stimuli caused atrophic changes in the PDL with the upregulation of IL-1beta a...
Objectives: To compare the correlation of H angle hard tissue and H angle soft tissue with the vi... more Objectives: To compare the correlation of H angle hard tissue and H angle soft tissue with the visual perception of skeletal type II patients. Materials and Methods: 59 lateral cephalograms of female patients from year 2016 to 2018 were hand traced and analysed by using ANB > 5.69 to define skeletal type II category. The principal investigator then traced the soft tissue profile outline of the cephalograms and transformed it into silhouettes for performing profile rating by the specialists. Profile ratings were done by two orthodontists on Visual Analogue Scale (VAS) with increasing levels of convexity. Rankings of visual perceptions (profile rating) were correlated with cephalometric measurements using Spearman correlation coefficient. Results: Our result showed that there was no statistically significant difference between the correlation of H angle hard tissue with the visual perception and the correlation of H angle soft tissue with the visual perception. The analysis of corr...
Objective: To evaluate and compare the discoloration of the esthetic ceramic brackets after stimu... more Objective: To evaluate and compare the discoloration of the esthetic ceramic brackets after stimulating staining in vivid-colored food solutions and coffee. Materials and methods: 108 ceramic brackets from 4 brands (Inspire Ice, Radiance Plus, Clarity, and W&H) were immersed in 4 solutions (Tom-Yum-Goong, yellow curry, green curry, and coffee) at 37°C for 3 and 7 days. Distilled water was used as a solution in the control group. Color changes (∆E) were measured by a spectrophotometer for CIE L*, a* and b* system. Then, the National Bureau of Standards (NBS) value was calculated. Statistical analysis was done using the Kruskal-Wallis test and the Mann-Whitney U Test (α = 0.05). Results: Immersed longer, there was a perceptible change of color in all ceramic brackets in Tom-Yum-Goong, yellow curry, and coffee, but no change was noticed in distilled water (∆E* < 3.7). The color alteration of brackets in green curry was found in Clarity and W&H brackets. Conclusion: Time, various viv...
APOS Trends in Orthodontics, 2021
Objectives: The objective of this study was to find the cephalometric measurements that correlate... more Objectives: The objective of this study was to find the cephalometric measurements that correlate with the visual perception. Materials and Methods: A total of 250 lateral cephalograms of patients from the year 2016 to 2018 were hand traced and analyzed. Thirty-six hard- and soft-tissue measurements were obtained from the lateral cephalometric analysis. Silhouettes obtained from cephalometric films were rated by 10 orthodontists based on their level of convexity. For each sample, the rating of visual perception was correlated with all the cephalometric (hard and soft) measurements. Results: ANB, AF-BF, L1-NB (mm), overjet, anterior maxillary alveolar height, posterior maxillary alveolar height, lower lip to E plane, and H angle were positively correlated with the visual perception. On the contrary, Pg. to N perpendicular and Pg. to NB (mm) were negatively correlated with the visual perception. However, the measurements in the vertical dimensions did not have any significant correlat...
Australasian Orthodontic Journal, 2021
Objective The purpose of this study was to assess the current literature on the effectiveness of ... more Objective The purpose of this study was to assess the current literature on the effectiveness of rapid palatal expansion (RPE) in assisting the spontaneous eruption of impacted maxillary canines. Materials and methods Four electronic databases were searched (Pubmed, Scopus, Web of Science, Embase) by applying appropriate Medical Subject Headings (MeSH). Two authors independently and systematically reviewed the literature. Randomised controlled trials (RCTs) and prospective controlled clinical trials (pCCTs) were identified and selected. The Cochrane Collaboration’s risk of bias tool and the risk of bias in non-randomised studies of interventions (ROBINS-I) were used to assess the quality of the obtained articles. Spontaneous canine eruption was used as a primary outcome. Results Three RCTs and two pCCTs met the inclusion criteria. One study was assessed at a high risk of bias in the RCT group, while the remainder were at an unclear risk of bias. Both pCCTs were classified as a moder...
Applied Mechanics and Materials, 2014
Objective: The aim of this study was to evaluate the adhesion of Streptococcus mutans (S. mutans)... more Objective: The aim of this study was to evaluate the adhesion of Streptococcus mutans (S. mutans) on different types of orthodontic elastic O-rings.
Orthodontic Waves, 2019
Purpose: To determine whether pre-treatment orthodontic case complexities were associated with th... more Purpose: To determine whether pre-treatment orthodontic case complexities were associated with their treatment outcomes in each category of malocclusion. Materials and methods: Two hundred orthodontic cases treated with edgewise appliances from university clinic that satisfied requirements for the certification were studied. The Discrepancy Index (DI) and the Objective Grading System (OGS) were calculated. The relationship between these measurements was evaluated using Pearson's correlation coefficient. Results: The mean DI score was 23.67 AE 10.30, and the mean OGS score was 19.92 AE 6.92. Statistically, there was only a weak and insignificant correlation between the DI and OGS (r = 0.055, p > 0.05). Buccolingual inclinations and interproximal contacts were components that had the highest and lowest mean OGS scores respectively. Conclusion: Malocclusion complexity was not associated with orthodontic treatment outcomes. Cases which underwent two-phase treatment were found to have the most complex pre-treatment malocclusion and also the most unsatisfactory clinical outcomes. The OGS component with the highest discrepancies was buccolingual inclinations.
Uploads
Papers by Supatchai Boonpratham