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Facility environmental and food-related factors associated with near-miss choking events in childcare facilities 与托儿设施差点窒息事件相关的设施环境和食物相关因素
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2026-01-30 DOI: 10.1016/j.pdj.2026.100372
Hyosong Kwon , Luna Osakabe , Akiko Ishizaki , Kai Shibahara , Naofumi Shimomura , Tomomi Sugiyama , Miyuki Hamano , Takahiro Funatsu , Shouji Hironaka
To avoid near-miss choking events, childcare facilities should ensure that staff members are properly trained, implement strict control strategies, and manage the physical environment. This study was based on an online survey conducted among staff members working at facilities belonging to the National Childcare Association, public childcare centers, and social welfare corporation–run facilities in Japan. It aimed to clarify the near-miss choking incidents occurring in childcare facilities and investigate the facility- and food-related factors to support risk alleviation and preventive approaches. In 79.1 % of children, no notable concerns regarding physical growth were recorded, whereas 31.7 % showed developmental concerns. With respect to the causes of near-miss events, 59.1 % were attributed to facility-related factors, such as food preparation practices and supervision arrangements. The most frequent way of information sharing between individual staff members was verbal communication (63.0 %), followed by staff meetings or morning briefings attended by all personnel (30.6 %). Near-miss events were associated most frequently with staple foods, including noodles, rice, and bread (32 %), followed by main dishes such as meat or fish (26 %). The findings revealed that immediate, on-site information sharing and routine safety practices serve as effective preventive measures for reducing event risk. Moreover, common staple foods, such as meat, bread, and rice, require proactive risk-reduction approaches by caregivers, including careful observation and texture modification. These events were affected not by a single factor, such as utensil use or food category, but by a combination of several interacting factors.
为了避免险些窒息的事件,托儿机构应确保工作人员接受适当的培训,实施严格的控制策略,并管理物理环境。该研究是以日本全国托儿协会所属设施、公立托儿中心、社会福利法人运营设施的工作人员为对象进行的在线调查为基础进行的。它旨在澄清在托儿设施中发生的险些窒息事件,并调查与设施和食品有关的因素,以支持减轻风险和采取预防措施。79.1%的儿童对身体生长没有明显的担忧,而31.7%的儿童表现出发育方面的担忧。至于差点脱险事件的原因,59.1%归因于与设施有关的因素,例如食物准备方法和监督安排。工作人员之间最常见的信息共享方式是口头交流(63.0%),其次是全体人员参加的工作人员会议或早间简报(30.6%)。未遂事件最常与主食有关,包括面条、米饭和面包(32%),其次是主菜,如肉或鱼(26%)。研究结果表明,即时的现场信息共享和日常安全措施是降低事件风险的有效预防措施。此外,肉类、面包和大米等常见主食需要护理人员采取积极主动的降低风险措施,包括仔细观察和修改质地。这些事件不是受到单一因素的影响,比如器具的使用或食物的种类,而是受到几个相互作用因素的综合影响。
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引用次数: 0
Erratum regarding missing Declaration of competing interest statements in previously published articles 关于先前发表的文章中缺少竞争利益声明的勘误表
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-12-01 DOI: 10.1016/j.pdj.2025.100371
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引用次数: 0
Prevalence of parent-reported tooth grinding in preschoolers: A retrospective study 父母报告的学龄前儿童磨牙患病率:一项回顾性研究
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-11-14 DOI: 10.1016/j.pdj.2025.100369
Leonardo Marchini , Matthew Geneser , Fang Qian

Purpose

To investigate the prevalence of parent-reported tooth grinding in a population of preschool-aged children attending a dental school, and to identify associated factors.

Methods

A total of 931 children aged 1–6 years documented in the electronic health records were analyzed. Descriptive statistics were used to summarize demographics and clinical features. Bivariate analyses explored the associations between parent-reported tooth grinding and various characteristics. Multivariable logistic regression was conducted to identify significant predictors of parent-reported tooth grinding, with odds ratios and confidence intervals reported. The model's fit was assessed, and multicollinearity among predictors was evaluated.

Results

Among the 931 participants, 70.8 % reported tooth grinding. Bivariate analysis showed that children taking daily medications were more likely to grind their teeth (78.6 % vs. 67.2 %; p < 0.001). Multivariable logistic regression confirmed this positive association (OR = 1.21, 95 % CI: 1.03–1.44; p = 0.025) and also found that children without mental health issues had higher odds of parent-reported tooth grinding compared to those with mental health issues (OR = 1.64, 95 % CI: 1.03–2.60; p = 0.037).

Conclusions

Tooth grinding as reported by parents was highly prevalent in this sample of preschoolers and prevalence was associated with number of medications and mental health status.
目的调查在牙科学校就读的学龄前儿童中家长报告的磨牙患病率,并确定相关因素。方法对931例1 ~ 6岁儿童电子健康档案资料进行分析。描述性统计用于总结人口统计学和临床特征。双变量分析探讨了父母报告的磨牙和各种特征之间的关系。采用多变量logistic回归来确定父母报告的磨牙的显著预测因素,并报告了比值比和置信区间。评估模型的拟合,并评估预测因子之间的多重共线性。结果931名参与者中,70.8%的人报告有磨牙现象。双变量分析显示,每天服用药物的儿童更有可能磨牙(78.6%对67.2%;p < 0.001)。多变量logistic回归证实了这一正相关(OR = 1.21, 95% CI: 1.03-1.44; p = 0.025),并且还发现无心理健康问题的儿童与有心理健康问题的儿童相比,父母报告的磨牙几率更高(OR = 1.64, 95% CI: 1.03-2.60; p = 0.037)。结论家长报告的磨牙现象在本样本学龄前儿童中非常普遍,其发生率与用药数量和心理健康状况有关。
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引用次数: 0
Enamel protection in pediatric patients using a bracket bonding agent with a bioactive monomer 具有生物活性单体的托架粘接剂在儿科患者牙釉质保护中的应用
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-11-07 DOI: 10.1016/j.pdj.2025.100368
Manami Tadano , Ryoko Hino , Seira Hoshikawa , Yuma Tsuruta , Shinji Otake , Yuta Chiba , Aya Yamada , Satoshi Fukumoto , Yuriko Maruya , Kan Saito

Aim

Fixed-appliance therapy during occlusal guidance in children increases the risk of enamel demineralization, often presenting as white spot lesions (WSLs). This study evaluated the clinical performance of a hydroxyapatite-inducing coating (Bio Coat Ca) for preventing new WSLs and improving pre-existing hypomineralization in pediatric patients.

Methods

This study evaluated 18 polycarbonate brackets bonded in three children undergoing occlusal guidance therapy. Bio Coat Ca was applied to labial enamel surfaces prior to bonding with Super Bond. Clinical outcomes included bracket retention, incidence of new WSLs, and changes in pre-existing hypomineralized enamel. Standardized intraoral photographs were analyzed using ImageJ to quantify lesion area ratios before and after treatment. Bracket survival was evaluated using Kaplan–Meier analysis.

Results

Of the 18 polycarbonate brackets evaluated, with five bond failures within 377 days (overall retention 72.2 %). This retention rate is comparable to previously reported outcomes for polycarbonate brackets, indicating that Bio Coat Ca does not compromise bonding performance. No new WSLs were observed in any case. Pre-existing hypomineralized areas decreased markedly, with lesion area ratios reduced to 11.76 %, 11.83 %, and 0.34 % in the three cases, respectively.

Conclusion

A single application of a calcium-releasing bioactive coating prior to bracket bonding was associated with the absence of new WSLs and the improvement of pre-existing enamel hypomineralization in children, without compromising bracket adhesion. This approach may be particularly beneficial for pediatric patients with limited cooperation or special health care needs.
在儿童咬合指导期间,固定矫治器治疗增加了牙釉质脱矿的风险,通常表现为白斑病变(WSLs)。本研究评估了一种羟基磷灰石诱导涂层(Bio Coat Ca)在预防儿科患者新发白斑和改善既往低矿化方面的临床性能。方法对3例接受牙合引导治疗的儿童18个聚碳酸酯托槽进行评价。生物涂层Ca应用于唇牙釉质表面之前,与超级粘结。临床结果包括托架保留、新WSLs发生率和原有低矿化牙釉质的改变。使用ImageJ分析标准化口内照片,量化治疗前后病变面积比。采用Kaplan-Meier分析评估支架存活率。结果在评估的18个聚碳酸酯托架中,有5个在377天内发生了粘结失效(总保留率为72.2%)。这一保留率与先前报道的聚碳酸酯支架的结果相当,表明Bio Coat Ca不会影响粘接性能。在任何情况下都没有观察到新的wsdl。先前存在的低矿化区明显减少,病变面积比例分别降至11.76%、11.83%和0.34%。结论:单次应用钙释放生物活性涂层,在不影响托架粘连的情况下,可以减少新的WSLs,改善儿童原有的牙釉质低矿化。这种方法可能对合作有限或有特殊保健需求的儿科患者特别有益。
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引用次数: 0
Development of resin-based coating materials specialized for Molar Incisor Hypomineralization 磨牙低矿化专用树脂基涂层材料的研制
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-25 DOI: 10.1016/j.pdj.2025.100367
Takayuki Sanai , Yusuke Fujita , Yoshihito Kurashige , Akihiro Ichimura , Sayaka Sakakibara , Erika Minowa , Taisei Kato , Chiaki Kanakubo , Hiromu Takahashi , Shuichi Ito , Mina Hirose , Masato Saitoh

Objective

This study aimed to develop a novel resin-based coating material specifically for molar incisor hypomineralization (MIH), with the dual purpose of reducing hypersensitivity and improving enamel discoloration.

Materials and methods

A modified version of Bio Coat Ca® (BC, Sun Medical, Shiga, Japan), a commercially available calcium-releasing resin coating material, was prepared by incorporating 0.5 %, 1.5 %, 3.0 %, or 5.0 % of white powder (WP). Enamel specimens were obtained from extracted human teeth and subjected to microtensile and shear bond strength tests to evaluate initial adhesion. Disk-shaped specimens were fabricated to assess hardness, elastic modulus, and calcium ion release. Color changes were evaluated using the CIE1976 Lab∗ color space system, which quantifies enamel color by lightness (ΔL∗), the red-green axis (Δa∗), the yellow-blue axis (Δb∗), and overall color difference (ΔE∗ab).

Results

Bond strength significantly decreased with 3.0–5.0 % white powder addition. In contrast, the 0.5 % and 1.5 % groups retained bond strength levels comparable to the original BC, indicating minimal impact on adhesion at lower concentrations. white powder addition led to increased hardness, elastic modulus, and calcium ion release, likely due to filler effects. ΔL values increased with higher white powder content, enhancing whiteness. In brownish enamel, 1.5–3.0 % formulations effectively masked discoloration, with significant ΔEab changes observed in the 3.0–5.0 % groups.

Conclusion

The 1.5 % white powder-modified BC maintained adhesive performance while providing effective masking of MIH-related discoloration. This formulation appears optimal for clinical application as an MIH-specific resin coating material.
目的研究一种新型的树脂基牙切牙低矿化(MIH)涂层材料,以达到减少过敏和改善牙釉质变色的双重目的。以0.5%、1.5%、3.0%或5.0%的白色粉末(WP)为原料,制备了市售释钙树脂涂层Bio Coat Ca®(BC, Sun Medical, Shiga, Japan)改性版。牙釉质标本取自提取的人类牙齿,并进行微拉伸和剪切粘结强度测试以评估初始粘附力。制作盘状试样以评估硬度、弹性模量和钙离子释放。使用CIE1976 Lab *色彩空间系统评估颜色变化,该系统通过亮度(ΔL∗)、红绿轴(Δa∗)、黄蓝轴(Δb∗)和整体色差(ΔE∗ab)来量化珐琅颜色。结果添加3.0 ~ 5.0 %白粉可显著降低胶结强度。相比之下,0.5%和1.5%的组保持了与原始BC相当的粘合强度水平,表明在较低浓度下对粘合的影响最小。白色粉末的加入导致硬度、弹性模量和钙离子释放增加,这可能是由于填料的作用。ΔL值随着白粉含量的增加而增加,白度提高。在褐色牙釉质中,1.5 - 3.0%的配方有效地掩盖了变色,在3.0-5.0 %的组中观察到显著的ΔEab变化。结论1.5%白粉改性BC在保持粘接性能的同时,对mih相关的变色具有有效的遮盖作用。作为一种mih特异性树脂涂层材料,该配方似乎是临床应用的最佳选择。
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引用次数: 0
Resorbable materials in rigid internal fixation of pediatric mandibular fractures: A scoping review 可吸收材料用于儿童下颌骨骨折的刚性内固定:范围回顾
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-16 DOI: 10.1016/j.pdj.2025.100364
Sofía Díaz Abarza, Dominga Ladevig Concha

Objective

To systematically identify and summarise clinical evidence on the use of bioresorbable plates for rigid internal fixation in pediatric mandibular fractures. The study aims to characterise the materials used, evaluate complication and reintervention rates, and assess radiographic and functional outcomes to determine the clinical safety and effectiveness of these systems in patients under 18 years of age.

Introduction

Resorbable plates have emerged as an alternative to metal fixation in paediatric mandibular fractures to obviate secondary removal surgery and reduce implant-related complications.

Method

ology: Scoping review according to PRISMA-ScR. PubMed/MEDLINE and Epistemonikos (2010–2025) were consulted for clinical studies using resorbable implants in internal fixation. Data were extracted on design, sample size, age, sex, fracture location, implant composition, thermoforming, resorption time, complications, reinterventions, duration of follow-up, imaging modalities and clinical outcomes.

Results

Eleven studies with 203 patients (mean age ≈ 7.5 years; 62 % male) were included. Fractures mainly involved symphysis/parasymphysis (42 %) and mandibular body (27 %).The most commonly used materials were poly-l-lactic acid (PLLA) (34.5 %), INION CPS™ multipolymer systems (composed of biodegradable copolymer blends, including poly-l-lactic acid (PLLA), poly-dl-lactic acid (PDLLA), and trimethylene carbonate (TMC)) (31.5 %) and poly-l-lactide-co-glycolide (PLGA) (19.7 %); 45 % of the plates were thermoformed. The overall complication rate was 3.2 % (mainly transient paraesthesia and implant exposure) and the reoperation rate was 1.3 %. Radiographic follow-up was universal, with durations ranging from 3 months to 5 years. All studies reported bone healing; most described favourable functional results in mastication, occlusion and facial symmetry.

Conclusion

Resorbable plates proved to be safe and effective in paediatric mandibular fractures, with low complication and reoperation rates and good radiographic and functional outcomes. However, methodological heterogeneity and lack of randomised trials call for standardised protocols and more rigorous studies.
目的系统识别和总结应用生物可吸收钢板治疗小儿下颌骨骨折的临床证据。该研究旨在描述所使用的材料,评估并发症和再干预率,并评估放射学和功能结果,以确定这些系统在18岁以下患者中的临床安全性和有效性。可吸收钢板已成为儿童下颌骨骨折金属固定的替代方法,以避免二次取出手术并减少植入物相关并发症。方法:根据PRISMA-ScR进行范围审查。参考PubMed/MEDLINE和Epistemonikos(2010-2025)进行可吸收内固定植入物的临床研究。数据包括设计、样本量、年龄、性别、骨折位置、种植体成分、热成形、吸收时间、并发症、再干预、随访时间、成像方式和临床结果。结果共纳入6项研究,203例患者(平均年龄≈7.5岁,男性占62%)。骨折主要累及联合/副联合(42%)和下颌骨(27%)。最常用的材料是聚l-乳酸(PLLA)(34.5%)、INION CPS™多聚聚合物体系(由可生物降解的共聚物混合物组成,包括聚l-乳酸(PLLA)、聚dl-乳酸(PDLLA)和碳酸三亚甲基(TMC))(31.5%)和聚l-乳酸-共聚乙醇酸(PLGA) (19.7%);45%的板是热成型的。总并发症发生率为3.2%(主要是短暂性感觉异常和植入物暴露),再手术率为1.3%。影像学随访普遍,随访时间从3个月到5年不等。所有的研究都报道了骨愈合;大多数描述了咀嚼,咬合和面部对称的良好功能结果。结论可吸收钢板治疗儿童下颌骨骨折安全有效,并发症低,再手术率低,影像学和功能预后良好。然而,方法学的异质性和缺乏随机试验需要标准化的方案和更严格的研究。
{"title":"Resorbable materials in rigid internal fixation of pediatric mandibular fractures: A scoping review","authors":"Sofía Díaz Abarza,&nbsp;Dominga Ladevig Concha","doi":"10.1016/j.pdj.2025.100364","DOIUrl":"10.1016/j.pdj.2025.100364","url":null,"abstract":"<div><h3>Objective</h3><div>To systematically identify and summarise clinical evidence on the use of bioresorbable plates for rigid internal fixation in pediatric mandibular fractures. The study aims to characterise the materials used, evaluate complication and reintervention rates, and assess radiographic and functional outcomes to determine the clinical safety and effectiveness of these systems in patients under 18 years of age.</div></div><div><h3>Introduction</h3><div>Resorbable plates have emerged as an alternative to metal fixation in paediatric mandibular fractures to obviate secondary removal surgery and reduce implant-related complications.</div></div><div><h3>Method</h3><div>ology: Scoping review according to PRISMA-ScR. PubMed/MEDLINE and Epistemonikos (2010–2025) were consulted for clinical studies using resorbable implants in internal fixation. Data were extracted on design, sample size, age, sex, fracture location, implant composition, thermoforming, resorption time, complications, reinterventions, duration of follow-up, imaging modalities and clinical outcomes.</div></div><div><h3>Results</h3><div>Eleven studies with 203 patients (mean age ≈ 7.5 years; 62 % male) were included. Fractures mainly involved symphysis/parasymphysis (42 %) and mandibular body (27 %).The most commonly used materials were poly-<span>l</span>-lactic acid (PLLA) (34.5 %), INION CPS™ multipolymer systems (composed of biodegradable copolymer blends, including poly-<span>l</span>-lactic acid (PLLA), poly-<span>dl</span>-lactic acid (PDLLA), and trimethylene carbonate (TMC)) (31.5 %) and poly-<span>l</span>-lactide-co-glycolide (PLGA) (19.7 %); 45 % of the plates were thermoformed. The overall complication rate was 3.2 % (mainly transient paraesthesia and implant exposure) and the reoperation rate was 1.3 %. Radiographic follow-up was universal, with durations ranging from 3 months to 5 years. All studies reported bone healing; most described favourable functional results in mastication, occlusion and facial symmetry.</div></div><div><h3>Conclusion</h3><div>Resorbable plates proved to be safe and effective in paediatric mandibular fractures, with low complication and reoperation rates and good radiographic and functional outcomes. However, methodological heterogeneity and lack of randomised trials call for standardised protocols and more rigorous studies.</div></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"35 3","pages":"Article 100364"},"PeriodicalIF":0.8,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145324088","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}
引用次数: 0
Successful correction of tooth eruption disturbance caused by mandibular enostosis using a pinhole perforation technique 应用针孔穿孔技术成功矫正下颌骨内瘘引起的出牙障碍
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-10 DOI: 10.1016/j.pdj.2025.100365
Asuna Sugimoto, Kokoro Iwata, Rika Kurogoushi, Tsutomu Iwamoto

Background

Enostosis of the jaw bones may rarely cause tooth eruption disturbances.

Case presentation

A 9-year-old girl presented with a mandibular first premolar displaced distally by enostosis at the alveolar ridge between the canine and premolar, resulting in loss of eruption space for the second premolar. To reduce bone resistance, pinhole perforations were drilled into the enostosis. This allowed the eruptive force of the second premolar to effectively push the first premolar mesially, restoring space and enabling proper eruption.

Conclusion

This is the first reported successful use of the pinhole perforation technique to correct eruption disturbances caused by enostosis.
背景:颌骨的闭塞很少会引起出牙障碍。病例介绍:一名9岁女孩,下颌第一前磨牙因犬齿和前磨牙之间的牙槽嵴内瘘而向远端移位,导致第二前磨牙失去出牙空间。为了减少骨阻力,在骨内瘘处钻孔穿孔。这使得第二前磨牙的爆发力有效地推动第一前磨牙,恢复空间,使适当的爆发。结论首次成功应用针孔穿孔技术治疗骨内瘘引起的出疹障碍。
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引用次数: 0
Regenerative endodontic treatment following immediate replantation of avulsed immature permanent tooth: Two case reports 不成熟恒牙即刻再植后再生牙髓治疗:2例报告
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-08 DOI: 10.1016/j.pdj.2025.100366
Sayaka Sakakibara, Yusuke Fujita, Erika Minowa, Taisei Kato, Yoshihito Kurashige, Masato Saitoh
Two cases of avulsed immature permanent maxillary central incisors in children were managed with immediate replantation and regenerative endodontic treatment (RET). Both cases showed long-term tooth preservation, apical healing, and functional retention without progressive root resorption. RET may offer a promising alternative to traditional apexification for traumatized immature teeth, supporting continued root development and favorable prognosis in challenging cases such as avulsion and replantation.
对2例儿童未成熟恒上颌中切牙撕脱进行了即刻再植和再生牙髓治疗(RET)。两例患者均表现出长期的牙齿保存、根尖愈合和功能保留,无牙根吸收进展。RET可能为创伤性未成熟牙齿提供传统根尖固定术的替代方法,支持持续的牙根发育,并且在撕脱和再植等具有挑战性的病例中具有良好的预后。
{"title":"Regenerative endodontic treatment following immediate replantation of avulsed immature permanent tooth: Two case reports","authors":"Sayaka Sakakibara,&nbsp;Yusuke Fujita,&nbsp;Erika Minowa,&nbsp;Taisei Kato,&nbsp;Yoshihito Kurashige,&nbsp;Masato Saitoh","doi":"10.1016/j.pdj.2025.100366","DOIUrl":"10.1016/j.pdj.2025.100366","url":null,"abstract":"<div><div>Two cases of avulsed immature permanent maxillary central incisors in children were managed with immediate replantation and regenerative endodontic treatment (RET). Both cases showed long-term tooth preservation, apical healing, and functional retention without progressive root resorption. RET may offer a promising alternative to traditional apexification for traumatized immature teeth, supporting continued root development and favorable prognosis in challenging cases such as avulsion and replantation.</div></div>","PeriodicalId":19977,"journal":{"name":"Pediatric Dental Journal","volume":"35 3","pages":"Article 100366"},"PeriodicalIF":0.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264727","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}
引用次数: 0
Histopathological evaluation of pulpal health in traumatized discoloured primary incisors: A cross-sectional study 创伤性变色原切牙牙髓健康的组织病理学评估:一项横断面研究
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-10-03 DOI: 10.1016/j.pdj.2025.100361
Revathy Viswanathan , Dhanraj Kalaivanan , Sujatha Anandan

Objective(s)

Tooth discoloration following trauma in primary dentition is a clinical indicator of potential pulpal pathology This study aims to assess the histological status of pulpal health in discolored traumatized primary incisors and its correlation with discoloration types.

Materials and Methods

A cross-sectional study was conducted on 55 pediatric outpatients (ages 3–7 years) between July 2021 and December 2022. Demographic details, time elapsed after trauma (TET), presence of symptoms, and discoloration type (Yellow, Grey, Pink, or Red) were documented. The extracted pulp tissue samples underwent histopathological assessment and were classified as: Normal/Healthy Pulp, Inflamed Pulp, Partial Necrosis, or Complete Necrosis. Statistical analyses were performed using the Chi-square test with a 95% significance threshold.

Results

Greyish discoloration was the most prevalent (87%), followed by pink (11%) and yellow (2%). Most cases (89%) were clinically asymptomatic, with 56.36% reported within six months of trauma. Histopathological examination revealed partial necrosis (42%), complete necrosis (38%), and inflammation (20%) in all discolored teeth. Despite these findings, no statistically significant correlation was established between discoloration type, histopathological pulp status, and TET (p>0.05).

Conclusion

(s): Greyish discoloration frequently coincides with pulpal necrosis. However, given study limitations, endodontic treatment should be guided by clinical and radiographic assessments rather than discoloration alone.
目的:初生牙列外伤后牙体变色是潜在牙髓病理的临床指标。本研究旨在评估创伤后变色的初生切牙牙髓健康的组织学状况及其与变色类型的相关性。材料与方法对2021年7月至2022年12月期间55例3-7岁儿科门诊患者进行横断面研究。记录了人口统计学细节、创伤后时间(TET)、症状的存在和变色类型(黄色、灰色、粉红色或红色)。提取的牙髓组织样本进行组织病理学评估,并分为:正常/健康牙髓、炎症牙髓、部分坏死或完全坏死。统计学分析采用卡方检验,显著性阈值为95%。结果以灰白色居多(87%),其次为粉红色(11%)和黄色(2%)。大多数病例(89%)临床无症状,56.36%在创伤后6个月内报告。组织病理学检查显示变色牙部分坏死(42%)、完全坏死(38%)和炎症(20%)。尽管有这些发现,变色类型、组织病理学牙髓状态和TET之间没有统计学意义上的相关性(p>0.05)。结论:牙髓坏死常伴发灰白色。然而,考虑到研究的局限性,根管治疗应该根据临床和放射学评估来指导,而不仅仅是变色。
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引用次数: 0
Regenerative endodontic treatment in avulsed immature permanent teeth: A scoping review 不成熟恒牙撕脱的再生牙髓治疗:范围综述
IF 0.8 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2025-09-27 DOI: 10.1016/j.pdj.2025.100363
Nahawand Koum , Mazen Musa , Riham Awad , Salma Izeldin , Qingyu Guo , Ning Dong

Aim

This scoping review assessed the performance of regenerative endodontic treatment (RET) in avulsed immature permanent teeth, which presented a significant challenge in dental trauma management. This scoping review aims to evaluate RET outcomes, protocols, complications, and effectiveness in avulsed immature permanent teeth, identifying research gaps to advance clinical application.

Materials and methods

The review encompassed a comprehensive search of PubMed, Cochrane Central Register of Controlled Trials, Web of Science, Scopus, and Science Direct, spanning over 20 years, supplemented by snowball searching. Full-text articles in any language were eligible if they were randomized/non-randomized clinical trials or prospective/retrospective cohort studies with at least 12 months of follow-up, following the PCC framework. Data were extracted using standardized forms, including author(s), publication year, study origin, aim, sample size, intervention protocol, follow-up, outcome measures, and measurement methods.

Results

Of the 1623 records reviewed, 14 studies met the inclusion criteria. These studies, involving 82 avulsed immature anterior teeth, demonstrated an overall success rate of 44 % (36/82) over a minimum 12-month follow-up, with success defined by periapical radiolucency resolution and positive root development. The included studies showed significant variability in RET protocols, with calcium hydroxide as the primary intracanal medicament, blood clot as the main scaffold, and 17 % (Ethylenediaminetetraacetic acid) EDTA with saline as the most common irrigation method. Notably, extra-alveolar time and storage conditions significantly influenced outcomes, with replantation within 60 min using a physiological medium yielding the best results.

Conclusion

While RET demonstrates approximately 44 % success in treating avulsed immature teeth, the variability in treatment protocols and the limited sample sizes in current studies highlight the need for more extensive research and standardized protocols to validate its use by dental practitioners.
目的评价再生牙髓治疗(RET)对未成熟恒牙撕脱的治疗效果,这是牙外伤治疗的一个重大挑战。本综述旨在评估RET治疗未成熟恒牙撕脱的结果、方案、并发症和有效性,确定研究空白以推进临床应用。材料和方法本综述包括PubMed、Cochrane Central Register of Controlled Trials、Web of Science、Scopus和Science Direct的综合检索,时间跨度超过20年,辅以滚雪球式检索。任何语言的全文文章,只要是随机/非随机临床试验或前瞻性/回顾性队列研究,随访至少12个月,符合PCC框架。采用标准化表格提取数据,包括作者、出版年份、研究来源、目的、样本量、干预方案、随访、结果测量和测量方法。结果在1623份文献中,14项研究符合纳入标准。这些研究涉及82颗被撕脱的未成熟前牙,在至少12个月的随访中,总体成功率为44%(36/82),成功的定义是根尖周放射性分辨率的分辨率和积极的牙根发育。纳入的研究显示RET方案存在显著差异,以氢氧化钙作为主要的管内药物,血凝块作为主要支架,17%(乙二胺四乙酸)EDTA加生理盐水作为最常见的冲洗方法。值得注意的是,肺泡外时间和储存条件显著影响结果,使用生理介质在60分钟内再植效果最佳。结论:虽然RET治疗未成熟撕脱牙的成功率约为44%,但目前研究中治疗方案的可变性和有限的样本量表明,需要进行更广泛的研究和标准化的方案,以验证牙科医生的使用。
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引用次数: 0
期刊
Pediatric Dental Journal
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