{"title":"Treatment of maxillary hypoplasia with bone anchored maxillary protraction (BAMP) - A case report","authors":"Sharvari Vichare, Gauri S. Vichare","doi":"10.4103/jos.jos_30_22","DOIUrl":"https://doi.org/10.4103/jos.jos_30_22","url":null,"abstract":"Early diagnosis and treatment is known to be beneficial in Class III malocclusions secondary to maxillary hypoplasia. However, success of treatment largely depends on the patient’s compliance and thus, appropriate choice of treatment, appliance and the age for interception plays an important role. Bone anchored maxillary protraction is one such approach presented in this case report for a 13 years old boy who reported with the chief complaint of lower front teeth visibility during speech and smiling. On examination his molars were in Angle’s Class III relation, anterior crossbite and deep bite with unerupted maxillary canines. Orthodontic treatment was begun for deep bite correction and for creating space for the maxillary canines, followed by surgical intervention for placement of bone anchored miniplates. Protraction was done for 14 months and the total treatment time was 20 months. Improvement in the patient’s profile, aesthetics and function was achieved with well aligned arches.","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"40 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139966371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mahmoud M. Fathy Abo-Elmahasen, Adel M. Shaaban, Mohamed Elsaharty, A. A. Mohamed, Mohamed I. Assadawy, Ibrahim Sabry El Sayed
{"title":"Evaluation of the remineralizing effect of the chicken eggshell paste after removal of the fixed orthodontic appliance: An in vitro study","authors":"Mahmoud M. Fathy Abo-Elmahasen, Adel M. Shaaban, Mohamed Elsaharty, A. A. Mohamed, Mohamed I. Assadawy, Ibrahim Sabry El Sayed","doi":"10.4103/jos.jos_194_23","DOIUrl":"https://doi.org/10.4103/jos.jos_194_23","url":null,"abstract":"\u0000 \u0000 Demineralization of the enamel surface, which appears as white spot lesions during and after removal of the fixed orthodontic appliance, is the most common disadvantage of the orthodontic treatment course. Using the remineralizing agents during and after orthodontic treatment helps to avoid those enamel defects.\u0000 \u0000 \u0000 \u0000 The present study aims to assess the remineralizing effect of the chicken eggshell powder on the demineralized enamel surfaces after debonding the orthodontic bracket system.\u0000 \u0000 \u0000 \u0000 The current study was performed on 80 prepared premolar crowns embedded into acrylic molds. The samples were prepared to receive routine steps of the bonding process for the bracket system. The paste of the chicken eggshell powder was added to the samples after the debonding process. Scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) were used to evaluate the remineralization effect of the chicken eggshell powder. Also, the Vickers microhardness tester was used to assess the enamel surface microhardness.\u0000 \u0000 \u0000 \u0000 It was found that the mean value of the Ca/P ratio for the samples before bonding of the orthodontic bracket system was (4.17 ± 2.2). This value significantly decreased to (2 ± 1.3) after debonding of the orthodontic bracket system and then showed a significant increase to (4.79 ± 2.65) after remineralization. These results were assured by the values of the Vickers microhardness tester.\u0000 \u0000 \u0000 \u0000 The chicken eggshell powder has an excellent remineralization effect for the demineralized enamel surface after debonding the orthodontic enamel surface.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"16 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139967010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mahmoud M. Fathy Abo-Elmahasen, Mohamed Elsaharty, Neven Abotaha, A. A. Mohamed
{"title":"Assessment of the condylar response of two differently anchored fixed functional appliances in class II malocclusion in young adult orthodontic patients: A randomized clinical trial","authors":"Mahmoud M. Fathy Abo-Elmahasen, Mohamed Elsaharty, Neven Abotaha, A. A. Mohamed","doi":"10.4103/jos.jos_112_23","DOIUrl":"https://doi.org/10.4103/jos.jos_112_23","url":null,"abstract":"\u0000 \u0000 Measuring the condylar volume changes after treatment with skeletally anchored type IV Herbst appliance vs. Twin Force Bite Corrector (TFBC) in class II malocclusion in young adult patients.\u0000 \u0000 \u0000 \u0000 Twenty class II malocclusion participants were randomly involved in our randomized clinical study. They are divided equally into two groups: group I (10 patients with an age range of 16 to 18 years and a mean age of (17.15 ± 0.62) (five males and five females) with a mean Angle formed between (A) point and (Nasion) point and (B) point, to determine anteroposterior relation between maxilla and mandible (ANB) of 6.20 (1.03) and a mean mandibular length of 106.1 (1.7), who were treated by a skeletally anchored type IV Herbst appliance, supported at the mandible by two mini-plates fixed bilaterally at the mandibular symphysis; group II (10 patients with an age range of 15 to 18 years and a mean age of (16.85 ± 0.33) (six males and four females) with a mean ANB of 6.80 (0.89) and a mean mandibular length of 107.3 (2.36), who were treated by a TFBC that was installed just mesial to the tube of the maxillary first permanent molar and distal to the bracket of the lower canine for 4 months. According to the Index of Orthognathic Functional Treatment Need (IOFTN) index, the participants in both groups have grade 4 (great need for treatment) as they have excessive overjet (6–9 mm). Cone-beam computed tomography (CBCT) was taken just before installing fixed functional appliances and after the removal. The condylar volume was measured using Dolphin software. Parametric measurements were performed by the independent t-test, while non-parametric variables (percent change) were compared by the Mann-Whitney U–test.\u0000 \u0000 \u0000 \u0000 On the right side, the Herbst group recorded a percent increase (median = 1.23%), while TFBC recorded a median percent decrease (-7.85%). This change is statistically significant (P = 0.008).\u0000 \u0000 \u0000 \u0000 The difference in the condylar volume was significantly higher with the mini-plate anchored Herbst appliance than with the dentally anchored TFBC group.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"3 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139966790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. A. Al-lami, Dhelal Al-Rudainy, Harraa S. Mohammed-Salih, Safa M. Salman
{"title":"Presurgical management trends and nasoalveolar molding usage for infants with cleft lip and palate in the capital of a developing country","authors":"H. A. Al-lami, Dhelal Al-Rudainy, Harraa S. Mohammed-Salih, Safa M. Salman","doi":"10.4103/jos.jos_165_23","DOIUrl":"https://doi.org/10.4103/jos.jos_165_23","url":null,"abstract":"\u0000 \u0000 Nasoalveolar molding (NAM) application is among presurgical management (PSM) techniques used for infants with cleft lip and palate (CLP). It helps to approximate the palatal cleft and to reshape the nasoalveolar complex prior to primary lip repair. This study aimed to explore types of PSM and the dental speciality provision for infants with CLP in Baghdad. The status of NAM usage and surgeons’ perceptions toward NAM usage were assessed.\u0000 \u0000 \u0000 \u0000 This is a cross-sectional paper-based questionnaire study that collected responses of surgeons perform primary lip and nose repair regarding PSM. The questionnaire was distributed amongst public and private hospitals in Baghdad. Twenty surgeons were enrolled (only those surgeons who perform primary repair for infants with CLP); two females and eighteen males.\u0000 \u0000 \u0000 \u0000 The majority of participants’ responses suggested that the majority of infants with CLP were provided with baby feeding plates and lip straps. Six surgeons reported that a percentage of their patients who have been provided with NAM. PSM in Baghdad was mostly supplied by orthodontists and plastic surgeons, and the next most likely providers were prosthodontists. 82.35% of the surgeons found that primary surgical repair procedures were easier with NAM than for the other infants. The rest have not perceived any differences.\u0000 \u0000 \u0000 \u0000 Orthodontists, surgeons and prosthodontists were involved in providing PSM. Baby feeding plates and lip straps were the most common PSM in Baghdad, although NAM is not uncommon. Most surgeons believe that using NAM made surgical procedures easier and permitted the prediction of surgical outcomes.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"55 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139967095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ibtisam A. Alshalawi, Dalal M. Alnahad, Husam I. Ardah, Wael M. Aboelmaaty, N. Alrejaye
{"title":"Evaluation of maxillary transverse dimensions in individuals with a unilaterally impacted canine","authors":"Ibtisam A. Alshalawi, Dalal M. Alnahad, Husam I. Ardah, Wael M. Aboelmaaty, N. Alrejaye","doi":"10.4103/jos.jos_129_23","DOIUrl":"https://doi.org/10.4103/jos.jos_129_23","url":null,"abstract":"\u0000 \u0000 The aim of this study was to investigate the maxillary width within individuals with a unilaterally impacted maxillary canine and to determine any association between the impacted canine location and some canine-related variables.\u0000 \u0000 \u0000 \u0000 A cross-sectional analytical study using a split-mouth design included 22 CBCTs of individuals with unilaterally impacted maxillary canines (a total of 44 sides). The maxillary width was measured and compared in both impacted and non-impacted sides at various levels: basal, alveolar, and dental. The following canine-related variables were analyzed and compared with impaction location: impacted canine angulation, cusp tip distance from the occlusal plane, type of impaction (vertical or horizontal), presence of root resorption, deciduous teeth, or adjacent teeth transposition. Significance was considered at P < 0.05.\u0000 \u0000 \u0000 \u0000 There was a significant reduction in maxillary width on the impacted side at the following levels: maxillary first premolar alveolar crest in both coronal and axial sections, dental width measured from the central fossa of maxillary first molar to the midline, and width measured from the canine cusp tip to the midline. Moreover, the distance from the palatally impacted canine cusp tip to the occlusal plane was statistically significantly lower (7.6 ± 1.5 mm) compared to buccal (10.8 ± 3.3 mm) and mid-alveolus (12.0 ± 3.9 mm) impaction, (P values = 0.02).\u0000 \u0000 \u0000 \u0000 There was a significant association between canine impaction and reduction in the maxillary width at least on the dental level. The palatally impacted canine cusp tip was significantly closer to the occlusal plane compared to the buccal and mid-alveolar impaction.\u0000","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"33 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139966886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Katragadda Saveri, Madhukar R Rachala, Arun K Dasari, Vankre Mallikarjun, Sakam Nikhil, Dhana P Gurram
{"title":"Comparative evaluation and influence of various staining agents on color stability and fluorescence of different esthetic orthodontic wires: An <i>in vitro</i> study.","authors":"Katragadda Saveri, Madhukar R Rachala, Arun K Dasari, Vankre Mallikarjun, Sakam Nikhil, Dhana P Gurram","doi":"10.4103/jos.jos_125_22","DOIUrl":"10.4103/jos.jos_125_22","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to compare and evaluate the effect of three staining solutions on the color stability of three different brands of esthetic archwires using a spectrophotometer and also to compare the fluorescence of esthetic archwires with extracted human teeth.</p><p><strong>Materials and methods: </strong>A total of 84 nickel-titanium (NiTi)-coated esthetic archwires with the same cross section and size (0.016 × 0.022″) were included. All samples were divided into four groups of 21 each, that is, group 1: artificial saliva (AS), group 2: coffee (C) solution, group 3: turmeric (T) solution, and group 4: chlorhexidine (CH) mouth rinse; each group was subdivided into three subgroups of seven each (Opal Classic (OC), Libral Rabbit Force (LRF), and Ortho Organizers (OO)). The baseline value (T0) was measured before immersion in the staining solution and then immersed in the staining solution for 21 days. The color measurements were recorded at different time intervals on the 7<sup>th</sup>, 14<sup>th</sup>, and 21<sup>st</sup> days using a spectrophotometer. The fluorescence of archwires is tested in a dark atmosphere using a fluorescent black lamp. The data obtained were analyzed using descriptive statistics, analysis of variance (ANOVA), and post hoc Bonferroni test.</p><p><strong>Results: </strong>A significant amount of color change in all three brands of archwires from day 0 to day 21 (<i>p</i> < 0.005) was observed, except for OC in the CH mouth rinse group (<i>p</i> = 0.230). The fluorescence of OO matches with the natural teeth.</p><p><strong>Conclusion: </strong>LRF showed the highest overall color change followed by OO and OC. Turmeric is the most chromogenic agent, followed by Coffee and CH mouth rinse.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"12 ","pages":"55"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/1b/89/JOS-12-55.PMC10597375.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50161936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M Hemanth, S W Afshan, B Alif Ahmed, J P Darsan, M Aravind, M P Suchitra
{"title":"Comparative evaluation of frictional characteristics between nano coated and non coated orthodontic brackets and arch wire configuration-An experimental <i>in vitro</i> study.","authors":"M Hemanth, S W Afshan, B Alif Ahmed, J P Darsan, M Aravind, M P Suchitra","doi":"10.4103/jos.jos_47_23","DOIUrl":"10.4103/jos.jos_47_23","url":null,"abstract":"<p><strong>Objective: </strong>To compare and assess the coefficient of frictional resistance between nano-coated orthodontic brackets and orthodontic archwires with conventional orthodontic brackets and archwires.</p><p><strong>Methodology: </strong>In this experimental study, 128 samples were divided into 4 groups consisting of 32 orthodontic wires and brackets in each group. The samples were randomly allocated into GROUP A- ZNO nanoparticle coated archwires and brackets, GROUP B ZNO nanoparticle coated bracket and conventional archwire, GROUP C-ZNO nanoparticle coated archwire and conventional bracket, and GROUP D- conventional archwire and bracket after positioning them on special jigs frictional resistance was studied and evaluated. Bon - Ferroni test was used for inter group comparison and one way ANOVA was used for intr-group comparison.</p><p><strong>Results: </strong>The lowest mean frictional resistance is seen with Group A (nanocoated archwire with nanocoated bracket) <i>N</i> = 0.3401 ± 0.420; and highest with Group D (conventional brackets with conventional archwires) <i>N</i> = 0.8413 ± 0.60. a significant difference in mean frictional resistance was observed between the groups (<i>P</i> ≤ 0.01). The frictional resistance for the groups was in the following order from lowest to highest: group A < B < C < D.</p><p><strong>Conclusion: </strong>The study showed decreased friction in ZNO nanoparticle coated archwires and brackets than conventional archwires and brackets.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"12 ","pages":"59"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/eb/1c/JOS-12-59.PMC10597377.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50161937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nada E Tashkandi, Sara A Asiri, Raneem A Al Bin Ali, Amal Z Maalawi, Sumaia H Alwan, Shaden M Alabood, Ruba M Alsharif
{"title":"A cross-sectional study into the reasons behind orthodontic re-treatment.","authors":"Nada E Tashkandi, Sara A Asiri, Raneem A Al Bin Ali, Amal Z Maalawi, Sumaia H Alwan, Shaden M Alabood, Ruba M Alsharif","doi":"10.4103/jos.jos_116_22","DOIUrl":"10.4103/jos.jos_116_22","url":null,"abstract":"<p><strong>Objective: </strong>This study aims to identify the motivations behind orthodontic re-treatment in Saudi Arabia.</p><p><strong>Materials and methods: </strong>This is a cross-sectional study performed through a patient questionnaire. The questionnaire elicited data on the respondents' socio-demographic data, type of previous orthodontic treatment, retention, satisfaction level, and reasons for undergoing orthodontic re-treatment.</p><p><strong>Results: </strong>Four hundred and nineteen responses were received during the study period from June to July 2022. The result showed a pre-dominant female predilection (83, 29%), with the majority belonging to the 21-25 age group (47.26%). Most participants had had one previous orthodontic treatment (77%), with an active treatment time of approximately 1-3 years (55.85%). There was no significant difference between the satisfaction of outcomes after the initial treatment and at the time of the survey. Most participants received retention appliances (69.45%) and were informed about the importance of appliances. The type of retention was mainly removable retainers (47.5%). Around one-third of the sample (31.98%) were interested in seeking orthodontic re-treatment, with self-motivation as the primary drive and improving the smile as the predominant reason.</p><p><strong>Conclusion: </strong>The study's findings show that a large portion of the population is seeking orthodontic re-treatment, which must be considered. Self-motivation was a driving force rather than external motivation. The most common reason for seeking orthodontic re-treatment was to improve their smile and the increased esthetic demand.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"12 ","pages":"56"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/26/4a/JOS-12-56.PMC10597372.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50161932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of maxillary first molar rotation on the severity of dental class II malocclusion: A cross-sectional study.","authors":"Lidhiya Alexander, A Shanaj Doulath, V Arun","doi":"10.4103/jos.jos_3_23","DOIUrl":"10.4103/jos.jos_3_23","url":null,"abstract":"<p><strong>Aim: </strong>The aim of the study was to evaluate and assess the influence of maxillary molar rotation on severity of dental class II malocclusion.</p><p><strong>Materials and methods: </strong>The study comprised of 4 different groups namely, 1/4th class II malocclusion, 2/4th class II malocclusion, 3/4th class II malocclusion and full class II malocclusion involving sample size of 20,15,16 and 12. The samples were subjected to digital evaluation of maxillary 1st permanent molar rotation using 4 parameters namely angle of Friel, Ricketts E-Line, angle of Henry and Premolar angle.</p><p><strong>Results: </strong>The results were subjected to statistical analysis using one way ANOVA wherein group IV (Full class II malocclusion) exhibited a greater rotational value. On evaluation, angle of Friel exhibited a mean of 59.6±1.61 degrees, Ricketts E-Line was found to be 12.3±1.77mm while angle of Henry showed a mean of 19±3.19 degrees and premolar angle was 12.5±5.83 degrees.</p><p><strong>Conclusion: </strong>On evaluating molar rotation using angle of Friel, Ricketts E-Line, angle of Henry and premolar angle, full cusp class II malocclusion presented higher degree of mesiopalatal rotation maxillary molar rotation. With increasing mesiopalatal rotation, the severity of molar relation also increased from 1/4th to full class II. Hence the maxillary molar spatial position along the long axis majorly influences the molar relation wherein a full cusp class II molar relation exhibits higher degree of molar rotation.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"12 ","pages":"52"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7e/6f/JOS-12-52.PMC10597379.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50161939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effect of vanillin nanoparticles on antimicrobial and mechanical properties of an orthodontic adhesive.","authors":"Mahmood Kh Ahmed, Niam Riyadh Alsaleem, Saeed AlSamak","doi":"10.4103/jos.jos_124_22","DOIUrl":"10.4103/jos.jos_124_22","url":null,"abstract":"<p><strong>Aims: </strong>To evaluate the effect of adding vanillin nanoparticles on the antimicrobial and mechanical properties of the orthodontic adhesive.</p><p><strong>Materials and methods: </strong>Transbond XT orthodontic adhesive (3M Unitek, Monrovia, California, USA) was modified with 1% and 2% vanillin nanoparticles. The chemical composition and degree of chemical conversion in orthodontic adhesive before and after adding vanillin nanoparticles to orthodontic adhesive were measured using Fourier transformation infrared spectroscopy (FTIR). Mechanical properties of unmodified orthodontic adhesive (UMOA) and 1% and 2% vanillin-modified orthodontic adhesive (VMOA) were assessed in shear bond strength (SBS) and tensile bond strength (TBS). The antimicrobial properties were evaluated using a Mueller-Hinton plate swapped with streptococcus mutans. The zone of bacterial inhibition for UMOA, 1% VMOA, and 2% VMOA was measured. Descriptive statistics, multiple comparisons, one-way ANOVA, and post hoc Duncan's test were used to compare among the results.</p><p><strong>Results: </strong>FTIR showed no chemical conversion of 1% VMOA and 2% VMOA. There was significant streptococcus mutans growth inhibition in 1% VMOA and 2% VMOA compared to UMOA. No significant difference in streptococcus mutans growth inhibition in 1% VMOA and 2% VMOA. The SBS decreased significantly in 1% VMOA compared to UMOA. In addition, SBS decreased insignificantly when comparing 1% VMOA and 2% VMOA. TBS significantly reduced in 2% VMOA compared with UMOA. In addition, there was no significant difference in TBS between UMOA and 1% VMOA, and 1% VMOA and 2% VMOA, respectively.</p><p><strong>Conclusions: </strong>The 1% VMOA has improved antimicrobial properties and kept mechanical properties of orthodontic adhesive within the acceptable level.</p>","PeriodicalId":16604,"journal":{"name":"Journal of Orthodontic Science","volume":"12 ","pages":"46"},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e4/d7/JOS-12-46.PMC10597367.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50161954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}