Journal of Clinical and Experimental Dentistry最新文献

{"title":"Bristle splaying and abrasive potential of different toothbrushes on the enamel and resin composite after brushing simulation.","authors":"Gabriel Felipe de Bragança, Juliane Franco Martins, Caroline Garcia Orsi, Ianca Daniele Oliveira de Jesus, Carlos José Soares, Priscilla Barbosa Ferreira Soares","doi":"10.4317/jced.62585","DOIUrl":"https://doi.org/10.4317/jced.62585","url":null,"abstract":"<p><strong>Background: </strong>Correct oral physiotherapy using toothbrushes is essential for mechanically removing biofilms to reduce caries and periodontal disease, but ideal toothbrush parameters have not yet been fully defined. The aim of this study was to evaluate the bristle splaying and abrasive potential of different toothbrushes on enamel and resin composites after simulated brushing for 30, 90, and 180 days.</p><p><strong>Material and methods: </strong>Seventy bovine flat tooth crowns containing a circular cavity on the enamel were restored using a resin composite (Forma, Ultradent) and brushed for 30, 90, and 180 days using seven toothbrushes (n = 10): Colorcare (Bianco Oral Care), Delicare (Bianco), Carbon-Magnetherapy (Bianco Oral Care), SlimSoft Advanced (Colgate), Pro Cuidado (Colgate), Curaprox CS5460 (Curaden), and Curaprox CS3960 (Curaden). The enamel and resin composite surface roughness (Ra) were evaluated at baseline and after brushing. The wear index and wear rate were evaluated using macrophotography and scanning electron microscopy (SEM). Data were analyzed using two-way repeated measurement analysis of variance and Kruskal Wallis followed by Tukey's and Duns tests (α = 0.05).</p><p><strong>Results: </strong>The Ra of the resin composite significantly increased after 30 (using SlimSoft), 90 (using SlimSoft, Pro Cuidado, and Carbon), and 180 days (using Colgate Pro Cuidado and CS3960; <i>P</i>< 0.001). The Ra of enamel increased significantly after 90 days of using Pro Cuidado, and 180 days using Pro Cuidado and CS5460. Carbon exhibited the highest wear index variation.</p><p><strong>Conclusions: </strong>CS5460, Carbon, and SlimSoft exhibited higher bristle volumes, narrow filament diameters, and higher wear rates and wear indices with lower Ra alterations. The Ra of the resin composite after 180 days was significantly higher for Pro Cuidado and CS3960. Enamel Ra was significantly higher in Pro Cuidado. <b>Key words:</b>Toothbrushing, dental abrasion, composite resins.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e259-e267"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994213/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064123","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":"A rare case of hairy leukoplakia in a young immunocompetent patient.","authors":"Ludimila Lemes Moura, Victor Villatoro Carrapato, Marcia Mirolde Magno de Carvalho Santos, Paulo Sérgio da Silva Santos","doi":"10.4317/jced.62391","DOIUrl":"https://doi.org/10.4317/jced.62391","url":null,"abstract":"<p><p>We present a case of oral hairy leukoplakia (OHL) in a male, 21-year-old immunocompetent patient. The patient had white, asymptomatic plaques located bilaterally on the tongue margin. The patient noticed the signs days after burning his tongue with hot food, which triggered the investigation. The case was treated initially as candidiasis and frictional keratosis. Exfoliative cytology indicated the presence of actinomycetes in the lesions, and a blood count suggested mild leukopenia (3,910/mm³; reference value 4,500 - 11,000/mm³). Photodynamic therapy and antiseptic mouthwash were used, with no improvement in the condition. The diagnosis of OHL had concluded after an incisional biopsy and immunohistochemical examination for anti-EBV. The patient's blood and serological tests showed no noteworthy changes. Cases of hairy leukoplakia in immunocompetent patients had founded in the literature and suggest that when this occurs, patients often have some comorbidity, such as hypertension, or use medications such as antihypertensives and steroid inhalers. However, the patient in the present case did not any of these conditions, which made the diagnosis challenging. In any case, it is always important to investigate the medical history and immune status of a patient diagnosed with OHL. <b>Key words:</b>Oral hairy leukoplakia, Epstein-Barr virus, Immunocompetent.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e354-e357"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994199/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144016543","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":"Is periodontitis a risk factor for ischemic stroke?: Systematic review and meta-analysis.","authors":"Angel Steven Asmat-Abanto, Rosita Elena Espejo-Carrera, Tammy Margarita Honores-Solano, Oscar Martín Del Castillo-Huertas, José Antonio Caballero-Alvarado, Carlos Alberto Minchón-Medina","doi":"10.4317/jced.62538","DOIUrl":"https://doi.org/10.4317/jced.62538","url":null,"abstract":"<p><strong>Background: </strong>Evidence suggests an association between periodontitis and ischemic stroke due to the elevated production of inflammatory markers and damage by infectious agents, which would promote a recurrent prothrombotic state. Therefore, the present systematic review and meta-analysis were carried out to determine whether periodontitis is a risk factor for ischemic stroke.</p><p><strong>Material and methods: </strong>A systematic search was conducted in five databases, including cohort and case-control studies published up to April 2024, in which periodontitis was evaluated as a risk factor for ischemic stroke through relative risk (RR), hazard ratio (HR) and odds ratio (OR). The Newcastle-Ottawa Scale (NOS) was used to assess the risk of bias, and the GRADE system was used to determine the certainty of the evidence.</p><p><strong>Results: </strong>Of the 1121 studies found, 16 were included in the qualitative analysis, and 10 were meta-analyzed. The global synthesis showed that periodontitis was a risk factor for ischemic stroke (OR=2.59, I2=96%), with the same result being found for the case-control subgroup (OR=3.44, I²=73%) and the cohort subgroup (OR=2.05, I²=99%). Individuals with periodontitis were also found to be more likely to develop lacunar infarcts (OR=5.00, I2=0%).</p><p><strong>Conclusions: </strong>Periodontitis is a risk factor for ischemic stroke with very low certainty of evidence and high heterogeneity. Furthermore, individuals with periodontitis were more likely to develop lacunar infarcts, with moderate certainty of evidence and null heterogeneity. <b>Key words:</b>Periodontitis, periodontal diseases, ischemic stroke, lacunar infarction, embolic stroke, thrombotic stroke.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e329-e340"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994202/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144003511","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":"Effect of precooling on the assessment of pain during local anesthesia in adults: A systematic review and meta-analysis.","authors":"Ana Beatriz Leme de Andrade, Sandra Lúcia Dantas de Moraes, Arthur José Barbosa de França, Rayanna Thayse Florêncio Costa, Eduardo Piza Pellizzer, Belmiro Cavalcanti do Egito Vasconcelos","doi":"10.4317/jced.62351","DOIUrl":"https://doi.org/10.4317/jced.62351","url":null,"abstract":"<p><strong>Background: </strong>Various methods aim to reduce pain from local anesthesia injections. While commonly used, topical anesthetics have limitations. This systematic review aimed to assess whether precooling is a more effective alternative to topical anesthetics for pain control during local anesthesia injections in adults.</p><p><strong>Material and methods: </strong>The review followed PRISMA guidelines and used the PICO framework. The protocol was registered in PROSPERO (CRD42023446314). Independent searches were conducted in PubMed/MEDLINE, SCOPUS, and Web of Science for studies published up to November 2024. Articles meeting the eligibility criteria were included. Data were extracted by one author and verified by another. A meta-analysis was performed to evaluate pain between the precooling and topical anesthetic groups after anesthesia and during needle insertion.</p><p><strong>Results: </strong>Eight randomized clinical trials met the inclusion criteria, with a combined sample of 415 patients. Six of the eight studies reported lower pain scores in patients who received precooling compared to those treated with topical anesthetics. Various agents were used for both local cooling and topical anesthesia. Meta-analysis showed statistically significant pain reduction in favor of precooling after anesthesia; however, no significant differences were found during needle insertion.</p><p><strong>Conclusions: </strong>Precooling may be an effective alternative to topical anesthetics, reducing pain associated with needle insertion and anesthetic injection in adults. Further research is warranted to establish a standardized application protocol. <b>Key words:</b>Local anesthesia, pain, precooling, cryoanesthesia, systematic review.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e341-e349"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994209/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143982009","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":"Association Between Alzheimer's Disease and Periodontal Inflammatory Parameters: A Systematic Review.","authors":"Adriana Melo, Javier Flores-Fraile, Roberto Lo Giudice, Enrico Marchetti, José Nart, Alice Rose Greethurst, Francisco Real-Voltas, Francesco Tarallo, Cosimo Galletti","doi":"10.4317/jced.62519","DOIUrl":"https://doi.org/10.4317/jced.62519","url":null,"abstract":"<p><strong>Background: </strong>The purpose of this systematic review was to analyze the current evidence of the potential correlation between periodontitis inflammatory parameters and Alzheimer's Disease (AD).</p><p><strong>Material and methods: </strong>A systematic review was conducted in accordance with the PRISMA guidelines. Electronic literature searches in PubMed, Medline, EBSCO, Scopus (ELSEVIER), Cochrane Library (Wiley) and Grey Library were conducted to analyze relevant references. Eligibility was based on inclusion criteria which included cross-sectional studies published after 2012.The rationale for selecting this temporal framework was grounded in the availability of studies from this period that aligned with the objectives and parameters of the review Authors independently selected the studies and extracted the data. Quality assessment was conducted under the Newcastle-Ottawa scale. The outcome variables were objectives, demographics, risks factors, dental statement, Pathogens, and conclusions.</p><p><strong>Results: </strong>The technique used was the comparison, pooling and study of different case studies (considered, or not, significant and/or representative). Out of 564 potentially eligible articles, 5 cross-sectional articles were included based on specific inclusion criteria such as being published after 2012, alignment with the study objectives, and focusing on Alzheimer's disease and periodontal inflammatory parameters. All five studies highlight a higher prevalence of AD in women that increases in age. While four studies supported connection between AD and periodontal inflammatory parameters, one study found no plausible association. The quality assessment displayed a mean score of 10.8 (Range: 0 to 13), being the domain \"selection\" the highest ranked and the \"comparability\" the lowest.</p><p><strong>Conclusions: </strong>Despite some conflicting studies, most suggest a positive correlation between PD and AD, highlighting the necessity for further clinical and longitudinal research. Also, patients with AD exhibit poorer oral hygiene, which contributes to PD, emphasizing the need for comprehensive dental care. Factors such as genetics, lifestyle and age play a significant role in this association. <b>Key words:</b>Alzheimer's disease, Cytokines, Gingipains, Periodontitis, Porphyromonas gingivalis.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e310-e323"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994203/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143985169","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":"Assessing the reliability of an integrated device measuring tongue pressure and bite force among dentate individuals - An observational study.","authors":"Jayaraja Banuchandar, Arun Aishwarya, Mani Uma-Maheswari, Mohamed Kasim","doi":"10.4317/jced.62517","DOIUrl":"https://doi.org/10.4317/jced.62517","url":null,"abstract":"<p><strong>Background: </strong>Tooth loss leading to complete edentulism negatively impacts quality of life and oral function. Reduced biting force capability affects normal oral function in those who have lost teeth. Decreased tongue pressure significantly affects total oromotor function, especially swallowing. While devices exist to measure biting force and tongue pressure independently, integrated evaluation tools are lacking. This emphasizes developing a reliable integrated tool for simultaneous evaluation. Purpose: To evaluate the reliability of an integrated device designed to measure tongue pressure and bite force simultaneously in dentate individuals.</p><p><strong>Material and methods: </strong>Study participants were 80 dentate individuals aged 21 to 55 years who were apparently normal. Participants with specific dental restorations, temporomandibular joint disorders, musculoskeletal disorders, or pacemakers were excluded. The MD30-60 force-sensitive sensors were employed to collect data on tongue pressure and bite force. Three recordings of the tongue pressure and bite force was done by three investigators at 1 minute time interval to prevent muscle fatigue. Statistical analysis utilized Intraclass Correlation Coefficient (ICC) and Lin's Concordance Correlation Coefficient (CCC) to assess the reliability of measurements.</p><p><strong>Results: </strong>The analysis of the Intraclass correlation and Lin's concordance correlation coefficient demonstrated excellent reliability for bite force measurements, with ICC values ranging from 0.882 to 0.906 and a mean bite force of approximately 510 N. Intraclass Correlation Coefficient (ICC) values ranged from 0.795 to 0.827 indicating good consistency among investigators. Bland-Altman analysis confirmed minimal bias and strong agreement for both measurements across investigators.</p><p><strong>Conclusions: </strong>The novel integrated device demonstrated high reliability for measuring bite force and tongue pressure simultaneously. <b>Key words:</b>Bite force, tongue pressure, reliability, integrated device, oral function, oro-motor function, clinical diagnosis, treatment planning, edentulism.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e293-e302"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994205/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144011244","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":"Dentoalveolar changes and transverse discrepancies through the treatment of class II division 1 malocclusion in children using a twin block device.","authors":"Harun Achmad, Rasmidar Samad, Mansjur Nasir, Asmidar Anas, Sri Ramadhany, Arrang Sesioria","doi":"10.4317/jced.62509","DOIUrl":"https://doi.org/10.4317/jced.62509","url":null,"abstract":"<p><strong>Background: </strong>This study aims to analyze dentoalveolar changes and transverse discrepancies in the treatment of class II division 1 dentoskeletal malocclusion before and after treatment using a functional twin block device.</p><p><strong>Material and methods: </strong>This study used a comparative analytical study to compare dentoalveolar changes and maxillary transverse discrepancies. The research sample was a study model of patients aged 7-15 years with 23 study models with class II division 1 dentoskeletal malocclusion cases at the clinic of the Department of Pediatric Dentistry, Hasanuddin University Educational Oral and Dental Hospital (RSGMP UNHAS). A sampling of the study model was carried out by purposive sampling. The measurement data was tested using the chi-squared normality test and then the statistical test was the paired t test.</p><p><strong>Results: </strong>Based on the statistical analysis of paired t-test there is a change in the distance between the mandibular canines, there is a change in the distance between the first premolars or between the mandibular first primary molars, there is a change in the distance between the second premolars or between the maxillary second primary molars, and there is a change in the distance between the maxillary molars after treatment using a twin block device.</p><p><strong>Conclusions: </strong>There were substantial dentoalveolar alterations in overjet, overbite, molar relation, and distance between premolars and molars after using the twin block device. <b>Key words:</b>Malocclusion, twin block, dentoalveolar, jaw discrepancy.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e239-e248"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994204/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064124","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":"Effect of Matrix Metalloproteinase Inhibitors on the Dentin Bond Strength and Durability of a Two-Step Universal Adhesive System.","authors":"Mohammad Esmaeel Ebrahimi-Chaharom, Aida Moeinian, Mehdi Abed-Kahnamouei, Mehdi Daneshpooy, Mahmoud Bahari","doi":"10.4317/jced.62406","DOIUrl":"https://doi.org/10.4317/jced.62406","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to investigate the effects of using two types of matrix metalloproteinase inhibitors (MMPI) on the dentin bond strength and durability of a two-step universal adhesive (G2-BOND Universal Adhesive).</p><p><strong>Material and methods: </strong>This study was conducted on 24 extracted molars, resulting in 144 samples. The occlusal surface of the teeth was cut perpendicularly to the longitudinal axis to expose the dentin. The samples were divided into 6 groups: Group 1 (Control, etch-and-rinse (ER)): bonding in the ER mode without MMPI; Group 2: bonding in the ER mode with chlorhexidine (CHX); Group 3: bonding in the ER mode with benzalkonium chloride (BAC); Group 4 (Control, Self-etch (SE)): bonding in the SE mode without MMPI; Group 5: bonding in the SE mode with CHX; Group 6: bonding in the SE mode with BAC. The entire dentin surface was restored with composite resin. Each group was further divided into two subgroups and either thermocycled for 500 or 10,000 cycles. The samples were cut into cylinders with a one square millimeter cross-sectional area and tested for microtensile bond strength (µTBS). Data was analyzed using 3-Way ANOVA and Games-Howell tests (<i>p</i>< 0.05).</p><p><strong>Results: </strong>There was a statistically significant difference in the mean µTBS based on the type of MMPI, aging method, and etching strategy. The mean µTBS in the Control group was significantly lower than in the CHX and BAC groups (<i>P</i>< 0.05). The mean µTBS was higher at 24 hours and in the ER group (<i>P</i>< 0.001). The effect of aging was consistent and decreasing (<i>P</i>> 0.05).</p><p><strong>Conclusions: </strong>The µTBS to dentin decreases after aging. However, the use of MMPI preserves bond strength to some extent in comparison to control groups after aging. <b>Key words:</b>Universal adhesive, Matrix metalloproteinase, Bond strength, Chlorhexidine, Benzalkonium chloride.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e233-e238"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994208/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144005867","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":"Computer-Aided excision of Parapharyngeal Space Pleomorphic Adenoma by Transcervical Approach. Case report.","authors":"Clara López-Martínez, Íñigo Aragón-Niño, Alba García-López-Chicharro, Marta María Pampín-Martínez, José Luis Cebrián-Carretero","doi":"10.4317/jced.62547","DOIUrl":"https://doi.org/10.4317/jced.62547","url":null,"abstract":"<p><strong>Background: </strong>The parapharyngeal space, situated in the neck's lateral part, poses challenges for surgical intervention due to its complex anatomy. Tumors in this space are rare, accounting for 0.5-1% of head and neck tumors, often remaining asymptomatic until reaching substantial sizes.</p><p><strong>Material and methods: </strong>This article outlines the surgical management of such lesions using navigation software, illustrated through a clinical case. A 38-year-old male presented with a mass at the right mandibular angle. Preoperative planning with Brainlab iPlan CMF® software aided in understanding the tumor's relationship with adjacent structures. A transcervical approach facilitated tumor excision without damaging vital anatomical structures. Histopathology confirmed pleomorphic adenoma.</p><p><strong>Results: </strong>The paper underscores the rarity of parapharyngeal tumors, the importance of individualized surgical strategies, and the utility of 3D technology in preoperative planning for enhanced anatomical understanding.</p><p><strong>Conclusions: </strong>The cervical approach remains a satisfactory choice for benign lesions in this challenging space. <b>Key words:</b>Parapharyngeal space, 3D technology, pleomorphic adenoma, transcervical approach, virtual planning.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e350-e353"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994214/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144016943","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":"Bolton's ratio variations in Angle's Class I, Class II and Class III malocclusions: An observational study.","authors":"Pinaki Roy, Poulomi Roy, Sourav Koley, Subhasis Sheet","doi":"10.4317/jced.62591","DOIUrl":"https://doi.org/10.4317/jced.62591","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to compare Bolton's Overall and Anterior ratio in different types of malocclusions.</p><p><strong>Material and methods: </strong>105 study cast were taken from the patients undergoing orthodontic treatment and they were divided into three classes based on molar relation, i.e. Angle's Class I (n = 35), Angle's Class II (n = 35) and Angle's Class III (n = 35) according to the Angle's classification of malocclusion. The mesio-distal widths of all maxillary and mandibular teeth from right first molar to left first molar were measured with a digital calliper. The findings were then used to calculate the anterior and total Bolton's ratios. Statistical analysis was done using ANOVA and Tukey's test.</p><p><strong>Results: </strong>The mean total ratio for the whole sample was 91.4±3.33, which is very close to Bolton's proposed ideal ratio. The anterior ratio for the whole sample was found to be 77.4±9.02, which is also similar Bolton's proposed ideal ratio. In Class I patients, the mean total ratio calculated was 91.2 ± 2.69, that is close to Bolton's proposed ideal ration and the mean anterior ratio calculated was 79.2±3.78, which is greater than Bolton's proposed ratio that signify increased mesio-distal width in mandibular anterior segment. The total mean ratio calculated for Class II was 91.1 ± 3.44) and for Class III patients was 92±3.77. The anterior mean ratio for class III patients was 78.6±5.24 and for Class II patients was 76.8± 5.28 which indicates higher anterior ration for class III patients and lower anterior ratio for class II patients compared to Bolton's ideal ratio that signifies mandibular anterior tooth material excess in Class III patients and maxillary anterior tooth material excess in class II cases.</p><p><strong>Conclusions: </strong>In this study population there was increased mesio-distal width in mandibular anterior segment in patients with Class I and Class III malocclusion. Also, there is maxillary anterior tooth material excess in Class II patients. <b>Key words:</b>Angle's classification, Anterior ratio , Bolton's Ratio , Inter-arch relationship, Overall ratio.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 3","pages":"e280-e285"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994211/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144020550","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}