Ectodermal dysplasia (ED) is a hereditary disease that affects tissues of the ectoderm system. Some patients reach adulthood before being diagnosed with ED, with dental manifestations sometimes leading to diagnosis.
Case presentation
Two child patients were diagnosed with ED based on dental findings. In one case, partial anodontia of primary and permanent teeth was observed. In the other, the number of primary teeth was normal, while there were only five permanent teeth present.
Conclusion
For some cases of ED not yet diagnosed, dental findings can lead to such a determination.
{"title":"Two cases of ectodermal dysplasia diagnosed based on congenital absence of multiple teeth","authors":"Rina Kariya, Tamami Kadota, Rena Okawa, Marin Ochiai, Makoto Okuda, Kazuhiko Nakano","doi":"10.1016/j.pdj.2023.03.001","DOIUrl":"10.1016/j.pdj.2023.03.001","url":null,"abstract":"<div><h3>Background</h3><p><span>Ectodermal dysplasia (ED) is a hereditary disease that affects tissues of the </span>ectoderm system. Some patients reach adulthood before being diagnosed with ED, with dental manifestations sometimes leading to diagnosis.</p></div><div><h3>Case presentation</h3><p>Two child patients were diagnosed with ED based on dental findings. In one case, partial anodontia<span> of primary and permanent teeth was observed. In the other, the number of primary teeth was normal, while there were only five permanent teeth present.</span></p></div><div><h3>Conclusion</h3><p>For some cases of ED not yet diagnosed, dental findings can lead to such a determination.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 2","pages":"Pages 147-151"},"PeriodicalIF":0.8,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48584062","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}
This study was conducted to explore the possibility of detecting the presence of impacted teeth in the upper midline using facial morphometric measurements.
Materials and Methods
The study included 260 children, aged 2–13 years, who visited our university hospital. To measure facial morphology, facial photographs were taken along with a ruler, and the correlation between each facial measurement point and the presence of mesiodens was statistically analyzed.
Results
Each measurement point increased in a time-dependent manner and there was a correlation between age and distance. In contrast, the ratio of the inner-canthal distance to the outer-canthal distance was not associated with age. Moreover, an increase in this ratio suggested the possible presence of mesiodens. Since age is associated with the presence of mesiodens within the inner canthal distance, a multivariate analysis that considered the effects of age and sex was performed and showed that the inner canthus/outer canthus ratio was 0.45. When the odds ratio of the presence of mesiodens in the group of less than 1.0 was set to 1.0, the odds ratio of the group of 0.45 or more was 5.36.
Conclusion
The presence of mesiodens can be predicted by measuring the ratio of the inner canthal distance to the outer canthal distance.
{"title":"The correlation between the inner canthal distance and maxillary mesiodens in children","authors":"Manami Tadano , Yasunori Matsunaga , Kan Saito , Yuria Suzuki , Tomoaki Nakamura , Seira Hoshikawa , Mitsuki Chiba , Ryoko Hino , Yuriko Maruya , Emiko Fukumoto , Aya Yamada , Satoshi Fukumoto","doi":"10.1016/j.pdj.2023.04.001","DOIUrl":"10.1016/j.pdj.2023.04.001","url":null,"abstract":"<div><h3>Purpose</h3><p>This study was conducted to explore the possibility of detecting the presence of impacted teeth<span> in the upper midline using facial morphometric measurements.</span></p></div><div><h3>Materials and Methods</h3><p><span>The study included 260 children, aged 2–13 years, who visited our university hospital. To measure facial morphology, facial photographs were taken along with a ruler, and the correlation between each facial measurement point and the presence of </span>mesiodens was statistically analyzed.</p></div><div><h3>Results</h3><p><span>Each measurement point increased in a time-dependent manner and there was a correlation between age and distance. In contrast, the ratio of the inner-canthal distance to the outer-canthal distance was not associated with age. Moreover, an increase in this ratio suggested the possible presence of mesiodens. Since age is associated with the presence of mesiodens within the inner canthal distance, a multivariate analysis that considered the effects of age and sex was performed and showed that the inner canthus/outer </span>canthus ratio was 0.45. When the odds ratio of the presence of mesiodens in the group of less than 1.0 was set to 1.0, the odds ratio of the group of 0.45 or more was 5.36.</p></div><div><h3>Conclusion</h3><p>The presence of mesiodens can be predicted by measuring the ratio of the inner canthal distance to the outer canthal distance.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 2","pages":"Pages 125-132"},"PeriodicalIF":0.8,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47608660","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}
Clear and effective communication is crucial for pediatric dentistry practitioners. This study aimed to assess whether evaluations of the communication skills of dental students by supervising physicians, paired students, and patients' parents aligned with the students’ self-evaluations.
Methods
This study was conducted between April and December 2018 at the University Hospital Pediatric Dentistry Outpatient Department. The subjects were 58 pediatric dentistry students (45 male and 13 female students), who were evaluated by their supervising physicians, colleagues, parents, as well as themselves using a questionnaire. The data were analyzed by weighted kappa analysis using SPSS version 27.0 software.
Results
Most supervising physicians, colleagues, and parents rated parameters, such as volume of voice during explanation, explanation of cleaning conditions, and explanation of cleaning equipment as excellent or good. However, many students self-assessed these parameters as below-average. Regarding the consistency between self- and others’ evaluations, only “explanation on snacking, eating or drinking was easy to understand” was generally consistent with the evaluations of supervising physicians.
Conclusions
The study's findings highlighted the importance of reflecting the gap between one's own assessment and that of other evaluators, which would help in the practice or professional decision making of dental students.
{"title":"Evaluation agreement between peer assessors, supervisors, and parents in assessing communication and interpersonal skills of students of pediatric dentistry","authors":"Jin Asari, Maiko Fujita-Ohtani, Kuniomi Nakamura, Tomomi Nakamura, Yoshinori Inoue, Shigenari Kimoto","doi":"10.1016/j.pdj.2023.04.002","DOIUrl":"10.1016/j.pdj.2023.04.002","url":null,"abstract":"<div><h3>Purpose</h3><p>Clear and effective communication is crucial for pediatric dentistry practitioners. This study aimed to assess whether evaluations of the communication skills of dental students by supervising physicians, paired students, and patients' parents aligned with the students’ self-evaluations.</p></div><div><h3>Methods</h3><p>This study was conducted between April and December 2018 at the University Hospital Pediatric Dentistry Outpatient Department. The subjects were 58 pediatric dentistry students (45 male and 13 female students), who were evaluated by their supervising physicians, colleagues, parents, as well as themselves using a questionnaire. The data were analyzed by weighted kappa analysis using SPSS version 27.0 software.</p></div><div><h3>Results</h3><p>Most supervising physicians, colleagues, and parents rated parameters, such as volume of voice during explanation, explanation of cleaning conditions, and explanation of cleaning equipment as excellent or good. However, many students self-assessed these parameters as below-average. Regarding the consistency between self- and others’ evaluations, only “explanation on snacking, eating or drinking was easy to understand” was generally consistent with the evaluations of supervising physicians.</p></div><div><h3>Conclusions</h3><p>The study's findings highlighted the importance of reflecting the gap between one's own assessment and that of other evaluators, which would help in the practice or professional decision making of dental students.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 2","pages":"Pages 133-138"},"PeriodicalIF":0.8,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49575534","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}
Pub Date : 2023-08-01DOI: 10.1016/j.pdj.2023.03.002
Aiswarya Bulusu , Sean D. Cleary
Introduction
Children with autism spectrum disorder exhibit unconventional responses to sensory stimulation which maybe a barrier to regular dental care.
Clinical Relevance/Objectives
The primary objective of this study is to assess the overall dental health status of children diagnosed with autism spectrum disorder aged 3–17 years compared with children of similar age who were diagnosed with Other Developmental Disabilities.
Methods
Data from 2016 National Survey of Children's Health was used to compare the dental health status of children aged 3–17 years diagnosed with autism spectrum disorder to other developmental disabilities, as well as across the levels of intellectual deficit by employing observational study design.
Results
Results indicated that with a comorbid intellectual deficit, children with autism spectrum disorder have higher odds of lacking preventive oral care and exhibiting dental problems, but significantly lower odds of reporting a poor/fair oral hygiene index compared to children with other developmental disabilities with intellectual deficit. Children with intellectual deficit had higher odds of reporting a poor/fair oral hygiene index but had lower odds of having dental problems compared to children without intellectual deficit, independent of autism spectrum disorder or other developmental disability.
Conclusion
These findings support the development of preventive protocols to improve oral health in children with autism spectrum disorder that may positively impact their quality of life.
{"title":"Comparison of dental health status in children with autism spectrum disorder vs other developmental disabilities: Results from 2016 national survey of Children's health","authors":"Aiswarya Bulusu , Sean D. Cleary","doi":"10.1016/j.pdj.2023.03.002","DOIUrl":"10.1016/j.pdj.2023.03.002","url":null,"abstract":"<div><h3>Introduction</h3><p><span>Children with autism spectrum disorder<span> exhibit unconventional responses to sensory stimulation which maybe a barrier to regular </span></span>dental care.</p></div><div><h3>Clinical Relevance/Objectives</h3><p>The primary objective of this study is to assess the overall dental health status of children diagnosed with autism spectrum disorder aged 3–17 years compared with children of similar age who were diagnosed with Other Developmental Disabilities.</p></div><div><h3>Methods</h3><p>Data from 2016 National Survey of Children's Health was used to compare the dental health status of children aged 3–17 years diagnosed with autism spectrum disorder to other developmental disabilities, as well as across the levels of intellectual deficit by employing observational study design.</p></div><div><h3>Results</h3><p>Results indicated that with a comorbid intellectual deficit, children with autism spectrum disorder have higher odds of lacking preventive oral care and exhibiting dental problems, but significantly lower odds of reporting a poor/fair oral hygiene index compared to children with other developmental disabilities with intellectual deficit. Children with intellectual deficit had higher odds of reporting a poor/fair oral hygiene index but had lower odds of having dental problems compared to children without intellectual deficit, independent of autism spectrum disorder or other developmental disability.</p></div><div><h3>Conclusion</h3><p>These findings support the development of preventive protocols to improve oral health in children with autism spectrum disorder that may positively impact their quality of life.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 2","pages":"Pages 85-92"},"PeriodicalIF":0.8,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43171605","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}
Pub Date : 2023-07-14DOI: 10.1016/j.pdj.2023.06.004
Eri Yoshida, Kana Goto, Daiki Matsuoka, Yukiko Miyai, Haruka Asaumi, Keiko Tabata, Shuhei Naka, Michiyo Matsumoto-Nakano
Background
Low birth weight is defined as less than 2500 g, with premature birth, a live birth within 37 weeks of pregnancy, and fetal growth restriction the most common causes. Congenital (natal) teeth are teeth that have already erupted at birth, and may be primary or supernumerary teeth.
Case report
A low birth weight infant was suspected to have congenital epulis an eruption cyst in the mandibular central incisor region. At a two-months checkup, gingival alveolar ridge swelling had disappeared and two mandibular anterior teeth were found erupted at the same site. The diagnosis was eruption cyst caused by a congenital tooth.
Conclusions
A swollen mandibular gingival alveolar ridge was seen at birth, though no feeding problems or other complications were noted. For the present patient, in consideration of age and surgical stress, the first choice for therapy was regular follow-up examination.
{"title":"Eruption cyst caused by congenital tooth in low birth weight infant","authors":"Eri Yoshida, Kana Goto, Daiki Matsuoka, Yukiko Miyai, Haruka Asaumi, Keiko Tabata, Shuhei Naka, Michiyo Matsumoto-Nakano","doi":"10.1016/j.pdj.2023.06.004","DOIUrl":"10.1016/j.pdj.2023.06.004","url":null,"abstract":"<div><h3>Background</h3><p>Low birth<span> weight is defined as less than 2500 g, with premature birth, a live birth within 37 weeks of pregnancy, and fetal growth<span> restriction the most common causes. Congenital (natal) teeth are teeth that have already erupted at birth, and may be primary or supernumerary teeth.</span></span></p></div><div><h3>Case report</h3><p>A low birth weight infant was suspected to have congenital epulis<span> an eruption cyst in the mandibular central incisor<span><span> region. At a two-months checkup, gingival alveolar ridge swelling had disappeared and two mandibular </span>anterior teeth were found erupted at the same site. The diagnosis was eruption cyst caused by a congenital tooth.</span></span></p></div><div><h3>Conclusions</h3><p>A swollen mandibular gingival alveolar ridge was seen at birth, though no feeding problems or other complications were noted. For the present patient, in consideration of age and surgical stress, the first choice for therapy was regular follow-up examination.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"34 1","pages":"Pages 42-45"},"PeriodicalIF":0.8,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43934967","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}
The objective was to assess the process of apical periodontitis induced by injecting Porphyromonas gingivalis lipopolysaccharide (Pg LPS) that is followed by regeneration of roots in premature permanent tooth. A novel operation table was introduced to facilitate endodontic treatment of mandibular molars.
Materials and Methods
Pulp of mandibular first molars of 6-week Wistar rats were exposed by drilling, inoculated with 0.6 μg Pg LPS and sealed with glass ionomer cement. After 1 and 2 weeks rats were sacrificed and the molar roots compared with those of vehicle controls by protein array analysis and (histo) morphology/chemistry. Micro-CT imaging visualized the lesion, and non-decalcified frozen serial sections were HE stained and subjected to TRACP-5b/ALP activity staining and immunohistochemical staining.
Results
Quantitative induction of inflammation enabled us to examine the effects of LPS-injection: micro-CT images exhibited much larger radiolucent apical lesions than did controls; CD68 (M1+ M2±) cell surface marker was more intense in Pg-1w and then subsided while CD163 (M1- M2+) was more intense in Pg-2w. Staining of IL-4, which induces M2 polarization, and angiogenic markers, VEGF/CD34 was intense in Pg-1w than in controls.
Conclusion
The introduced apparatus facilitated accurate mandible operation with ease. Thus, stages of pulpal infection were reproduced quantitatively with a small amount of Pg LPS. Proteins expressed in the root apex where inflammation occurred and the lesion in the surrounding alveolar bone revealed the inflammation time course in the immature permanent teeth. This mandibular model turned out quite useful for clinical and pharmaceutical developments in the future.
{"title":"Progress of LPS-induced apical lesion in rat immature mandibular molars","authors":"Chikako Nakajima , Maiko Fujita-Otani , Yuko Mikuni-Takagaki , Kuniomi Nakamura , Kouki Hidaka , Akira Kawata , Ryota Kawamata , Shigenari Kimoto","doi":"10.1016/j.pdj.2022.12.001","DOIUrl":"10.1016/j.pdj.2022.12.001","url":null,"abstract":"<div><h3>Introduction</h3><p><span>The objective was to assess the process of apical periodontitis induced by injecting </span><span><em>Porphyromonas gingivalis</em></span><span> lipopolysaccharide<span> (Pg LPS) that is followed by regeneration of roots in premature permanent tooth. A novel operation table was introduced to facilitate endodontic<span> treatment of mandibular molars.</span></span></span></p></div><div><h3>Materials and Methods</h3><p><span>Pulp of mandibular first molars<span> of 6-week Wistar rats were exposed by drilling, inoculated with 0.6 μg Pg LPS and sealed with glass ionomer cement. After 1 and 2 weeks rats were sacrificed and the molar roots compared with those of vehicle controls by </span></span>protein array analysis<span> and (histo) morphology/chemistry. Micro-CT imaging visualized the lesion, and non-decalcified frozen serial sections were HE stained and subjected to TRACP-5b/ALP activity staining and immunohistochemical staining.</span></p></div><div><h3>Results</h3><p><span>Quantitative induction of inflammation enabled us to examine the effects of LPS-injection: micro-CT images exhibited much larger radiolucent apical lesions than did controls; CD68 (M1+ M2±) </span>cell surface marker was more intense in Pg-1w and then subsided while CD163 (M1- M2+) was more intense in Pg-2w. Staining of IL-4, which induces M2 polarization, and angiogenic markers, VEGF/CD34 was intense in Pg-1w than in controls.</p></div><div><h3>Conclusion</h3><p>The introduced apparatus facilitated accurate mandible<span> operation with ease. Thus, stages of pulpal infection were reproduced quantitatively with a small amount of Pg LPS. Proteins expressed in the root apex where inflammation occurred and the lesion in the surrounding alveolar bone revealed the inflammation time course in the immature permanent teeth. This mandibular model turned out quite useful for clinical and pharmaceutical developments in the future.</span></p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 1","pages":"Pages 14-24"},"PeriodicalIF":0.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43295431","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}
Regional odontodysplasia is a rare developmental anomaly usually affecting maxillary anterior region. We reported clinical observation in relation to two cases of regional odontodysplasia as the first report (Ped Dent J 2020; 30:124–128). There are only a few studies that have reported the detailed histological structure of teeth affected by odontodysplasia. The purpose of this report was to explore histologically the primary teeth affected by odontodysplasia in the two cases.
Materials and methods
The subjects of this study were two primary teeth with odontodysplasia reported as the first report, upper right primary lateral incisor of case1 and upper right primary first molar of case 2. These affected teeth were observed using stereo microscope, high resolution X-ray CT scanner (Micro CT), optical microscope and electron beam probe microanalyzer (EPMA).
Result
The surface of both teeth was rough and the volume of enamel was small at the hypoplastic areas. Histological findings revealed that enamel rods as well as dentinal tubules were unclear and that the volume of minerals in enamel was low in the case 1.
Conclusion
Detailed histological observation revealed that enamel and dentine were hypoplastic. It was suggested that tooth germ formation began normally, but problems occurred in cell differentiation stages of teeth affected by odontodysplasia. Moreover, hypocalcification was more severe in the primary anterior tooth than the primary molar.
{"title":"Histological findings of regional odontodysplasia in maxillary right region in two cases","authors":"Masamichi Ide , Yohei Oshima , Toshie Chiba , Akari Adaniya , Takako Kuroki , Yasuo Miake , Yoshinobu Asada","doi":"10.1016/j.pdj.2022.11.002","DOIUrl":"10.1016/j.pdj.2022.11.002","url":null,"abstract":"<div><h3>Background</h3><p><span>Regional odontodysplasia is a rare developmental anomaly usually affecting maxillary anterior region. We reported clinical observation in relation to two cases of regional odontodysplasia as the first report (Ped Dent J 2020; 30:124–128). There are only a few studies that have reported the detailed histological structure of teeth affected by odontodysplasia. The purpose of this report was to explore histologically the </span>primary teeth affected by odontodysplasia in the two cases.</p></div><div><h3>Materials and methods</h3><p>The subjects of this study were two primary teeth with odontodysplasia reported as the first report, upper right primary lateral incisor<span> of case1 and upper right primary first molar of case 2. These affected teeth were observed using stereo microscope, high resolution X-ray CT scanner (Micro CT), optical microscope and electron beam probe microanalyzer (EPMA).</span></p></div><div><h3>Result</h3><p>The surface of both teeth was rough and the volume of enamel was small at the hypoplastic areas. Histological findings revealed that enamel rods as well as dentinal tubules were unclear and that the volume of minerals in enamel was low in the case 1.</p></div><div><h3>Conclusion</h3><p><span>Detailed histological observation revealed that enamel and dentine were hypoplastic. It was suggested that tooth germ formation began normally, but problems occurred in cell differentiation stages of teeth affected by odontodysplasia. Moreover, hypocalcification was more severe in the primary </span>anterior tooth<span> than the primary molar.</span></p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 1","pages":"Pages 7-13"},"PeriodicalIF":0.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45881934","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}
Pub Date : 2023-04-01DOI: 10.1016/j.pdj.2023.01.004
Malin Collin , Nikolaos Christidis , Malin Ernberg , Laila Wiklander , Linda Z. Arvidsson , Tore A. Larheim , Britt Hedenberg-Magnusson
Objective
To investigate the reliability of panoramic imaging (PAN) with cone beam computed tomography (CBCT) as gold standard to distinguish between normal and abnormal temporomandibular joint (TMJ) morphology in a sample of children with juvenile idiopathic arthritis (JIA).
Material and method
In this prospective cohort study, 106 PAN and 108 CBCT examinations from 54 children were obtained. A classification system with reference images was developed and used to discriminate between normal and abnormal TMJ morphology. The severity of abnormality and additional findings were registered. Three experienced and calibrated maxillofacial radiologists evaluated the images and intra- and inter-reader agreement was calculated.
Results
Consensus diagnosis of abnormal TMJ morphology on PAN and on CBCT was registered in 27.6% and 28.1% of the joints, respectively. There were differences between the two imaging modalities regarding severity grading of abnormality and registration of additional findings. With CBCT abnormal TMJ morphology was frequently graded as more severe and additional findings such as erosions and osteophytes more frequently found.
Conclusion
With trained readers, PAN was found to distinguish between morphologically normal and abnormal TMJs equally often as CBCT. Thus, the method seems valuable for assessing TMJ involvement in children with JIA. However, CBCT was found to be superior for assessing severity of abnormality and additional diagnostic information.
{"title":"Panoramic imaging may detect morphologically abnormal temporomandibular joints in children with juvenile idiopathic arthritis","authors":"Malin Collin , Nikolaos Christidis , Malin Ernberg , Laila Wiklander , Linda Z. Arvidsson , Tore A. Larheim , Britt Hedenberg-Magnusson","doi":"10.1016/j.pdj.2023.01.004","DOIUrl":"10.1016/j.pdj.2023.01.004","url":null,"abstract":"<div><h3>Objective</h3><p>To investigate the reliability of panoramic imaging (PAN) with cone beam computed tomography (CBCT) as gold standard to distinguish between normal and abnormal temporomandibular joint (TMJ) morphology in a sample of children with juvenile idiopathic arthritis (JIA).</p></div><div><h3>Material and method</h3><p>In this prospective cohort study, 106 PAN and 108 CBCT examinations from 54 children were obtained. A classification system with reference images was developed and used to discriminate between normal and abnormal TMJ morphology. The severity of abnormality and additional findings were registered. Three experienced and calibrated maxillofacial radiologists evaluated the images and intra- and inter-reader agreement was calculated.</p></div><div><h3>Results</h3><p>Consensus diagnosis of abnormal TMJ morphology on PAN and on CBCT was registered in 27.6% and 28.1% of the joints, respectively. There were differences between the two imaging modalities regarding severity grading of abnormality and registration of additional findings. With CBCT abnormal TMJ morphology was frequently graded as more severe and additional findings such as erosions and osteophytes more frequently found.</p></div><div><h3>Conclusion</h3><p>With trained readers, PAN was found to distinguish between morphologically normal and abnormal TMJs equally often as CBCT. Thus, the method seems valuable for assessing TMJ involvement in children with JIA. However, CBCT was found to be superior for assessing severity of abnormality and additional diagnostic information.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 1","pages":"Pages 52-60"},"PeriodicalIF":0.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45746980","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}
We report a case of idiopathic internal resorption in primary canines and molars.
Case Presentation
A Japanese boy aged 4 years 0 months with no history of orofacial trauma was referred for a fracture in the crown of the maxillary right primary canine with exposed pulp. Internal resorption was diagnosed, and pulp treatment was performed to preserve the tooth from further resorption. Consequently, internal resorption was found in five primary teeth within 18 months during follow-up appointments.
Conclusion
In patients with idiopathic internal resorption seen in multiple primary teeth, short-term follow-up examinations and treatment for tooth preservation should be performed.
{"title":"Idiopathic internal resorption in primary canines and molars – Case report","authors":"Takahiro Kitamura, Masatoshi Otsugu, Marin Ochiai, Maika Kadono, Aya Muranaka, Kazuhiko Nakano","doi":"10.1016/j.pdj.2022.11.001","DOIUrl":"10.1016/j.pdj.2022.11.001","url":null,"abstract":"<div><h3>Background</h3><p>We report a case of idiopathic internal resorption in primary canines and molars.</p></div><div><h3>Case Presentation</h3><p><span>A Japanese boy aged 4 years 0 months with no history of orofacial trauma was referred for a fracture in the crown of the maxillary right primary canine with exposed pulp. Internal resorption was diagnosed, and pulp treatment was performed to preserve the tooth from further resorption. Consequently, internal resorption was found in five </span>primary teeth within 18 months during follow-up appointments.</p></div><div><h3>Conclusion</h3><p>In patients with idiopathic internal resorption seen in multiple primary teeth, short-term follow-up examinations and treatment for tooth preservation should be performed.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 1","pages":"Pages 69-73"},"PeriodicalIF":0.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46285822","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}
This study aimed to clarify effective eye movement patterns during mixed dentition panoramic radiographic reading in dental students.
Methods
Sixty fifth-year dental students (19 women and 41 men) participated in the study and visually observed mixed dentition panoramic radiograph. Eye movement patterns during reading were classified into group R for clockwise (right rotation), group L for counterclockwise (left rotation), or group S for few fixations and mainly saccades. The reading results, number of fixations, number of blinks, pupil area, and average amplitude were compared among the three groups.
Results
Participants in group R had significantly better reading performance (P < 0.001, analysis of variance) and tended to have larger pupil areas than the other groups. Participants in group S had poorer reading performance, significantly fewer fixations, significantly more blinks, smaller pupil area, and greater average amplitude than the other groups (P < 0.001, respectively, analysis of variance, Kruskal–Wallis test).
Conclusions
When reading panoramic radiographs in the mixed dentition phase, observations in a clockwise order are recommended, as they are associated with improved learning performance. Frequent eye movements may indicate lower levels of interest or difficulty with the task and are associated with poorer learning performance. Classifying eye movement patterns while observing a test image provides suggestions that can be used to improve education in diagnostic imaging of pediatric dentistry.
{"title":"Evaluation of eye movement patterns during reading of mixed dentition panoramic radiographs in dental students","authors":"Satoshi Tanaka , Hiroyuki Karibe , Yuichi Kato , Akira Komatsuzaki , Tsuneo Sekimoto , Junko Shimomura-Kuroki","doi":"10.1016/j.pdj.2023.01.002","DOIUrl":"10.1016/j.pdj.2023.01.002","url":null,"abstract":"<div><h3>Objectives</h3><p>This study aimed to clarify effective eye movement patterns during mixed dentition panoramic radiographic reading in dental students.</p></div><div><h3>Methods</h3><p>Sixty fifth-year dental students (19 women and 41 men) participated in the study and visually observed mixed dentition panoramic radiograph. Eye movement patterns during reading were classified into group R for clockwise (right rotation), group L for counterclockwise (left rotation), or group S for few fixations and mainly saccades. The reading results, number of fixations, number of blinks, pupil area, and average amplitude were compared among the three groups.</p></div><div><h3>Results</h3><p>Participants in group R had significantly better reading performance (P < 0.001, analysis of variance) and tended to have larger pupil areas than the other groups. Participants in group S had poorer reading performance, significantly fewer fixations, significantly more blinks, smaller pupil area, and greater average amplitude than the other groups (P < 0.001, respectively, analysis of variance, Kruskal–Wallis test).</p></div><div><h3>Conclusions</h3><p>When reading panoramic radiographs in the mixed dentition phase, observations in a clockwise order are recommended, as they are associated with improved learning performance. Frequent eye movements may indicate lower levels of interest or difficulty with the task and are associated with poorer learning performance. Classifying eye movement patterns while observing a test image provides suggestions that can be used to improve education in diagnostic imaging of pediatric dentistry.</p></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"33 1","pages":"Pages 33-41"},"PeriodicalIF":0.8,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47362961","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号