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This study aimed to evaluate a new modified fixed appliance for rehabilitation of premature loss of anterior teeth in preschool children versus a modified Nance appliance on maxillary arch growth with parental satisfaction. The study was conducted as a clinical trial and it was carried out at Pediatric Dentistry Department, Faculty of Dentistry, Tanta University. Forty preschool children from both genders aged from 3–5 years were included in the study. The selected children were divided into two groups; Group I: Twenty children received a modified fixed bridge. Group II: Twenty received a modified Nance appliance. Evaluation of both appliances on maxillary growth was carried out at baseline, 6 and 12 months. Finally, parental satisfaction was also recorded. It was revealed that, there was continuous maxillary growth in both groups at different follow up periods with no sexual dimorphism, and parental satisfaction was significantly higher in group I than group II. A modified fixed bridge was better than Nance appliance regarding parental satisfaction and it doesn’t interfere with maxillary growth.

For restoration of extensively damaged teeth preprosthetic treatment measures are necessary. Crown lengthening and extrusion affect the prospective crown-root ratio (CRR). The subject of this in vitro study was to compute CRRs for both treatment approaches. 120 human maxillary central extracted incisors were measured. Measurements were calculated for five treatment groups: C (control), E-2 mm (extrusion of 2 mm), E-4 mm (extrusion of 4 mm), CL-2 mm (crown lengthening of 2 mm), and CL-4 mm (crown lengthening of 4 mm). Tooth (TL), root (RL), and crown lengths (CL) were measured from mesial (m) and facial (f) cemento-enamel junction (CEJ), and respective anatomic (CRR) and effective crown-root ratios (eCRR) were calculated. Following CRR values were computed for C: CRR-m = 0.4 ± 0.1, CRR-f = 0.7 ± 0.1. All crown-root ratios were lower (more favourable) for extrusion compared to crown lengthening ( p  < 0.001). ECRRs were higher than anatomic CRRs. CRR at mesial CEJ was significantly lower than CRR with facial CEJ as reference ( p  < 0.001). Mesial measurement-based calculations of CRR typically based on radiographic images should be interpreted with caution as they underestimate the eCRR. CRR can be expected as lower, i.e. more favourable, when teeth are extruded than crown lengthened.

This study aimed to determine the incidence of traumatic dental injuries (TDIs) during oral tracheal intubation by traditional laryngoscopy in general anesthesia (GA) in pediatric patients aged 4–13 and the correlated risk factors in Damascus, Syria. The study included children at the Department of General Surgery, Damascus University. Each child was examined before, during, and after 12–24 h of entering the operation room. The examination aimed to obtain demographic data and information regarding anesthesia procedures and the oral cavity. This study demonstrated that the incidence of TDIs during oral tracheal intubation was 16.00%. Most of those injuries are intra-oral, which were related to soft tissue. Maxillary incisors were the most affected teeth. Concussion and tongue injury were the common types of hard and soft tissue injury, respectively. There is a relation between TDIs and the occlusal stage, the difficulty of intubation, the number of intubation attempts, the Mallampati score, inter-incisor distance, and the distance between the mental and thyroid cartilage ( p  < 0.05). TDIs during oral tracheal intubation in GA are injuries with many risk factors and can’t be avoided even with skilled anesthetists. Careful Preoperative clinical examination of the oral cavity by anesthesiologists can reduce the incidence of TDIs.

The increasing use of e-scooters globally has resulted in a rise in traffic-related injuries, particularly maxillofacial trauma. This study assesses the potential impact of legislative measures, specifically speed limits and night-time usage restrictions, on reducing maxillofacial injuries from e-scooter accidents. A retrospective cohort study was conducted using data from patients treated for e-scooter-related injuries at Helsinki University Hospital between January 2021 and December 2023. The study included 1275 patients, aged ≥ 16 years, treated in three trauma hospitals. Patients not riding e-scooters at the time of injury were excluded. Injury patterns and the influence of legislative measures were analyzed. Among the 1275 patients, 169 (13.3%) sustained maxillofacial injuries. Legislative restrictions were associated with a significant reduction in maxillofacial injuries, with up to an 88% decrease in some months. Predictors of maxillofacial injuries included older age (OR 1.06, 95% CI 1.04–1.08), alcohol intoxication (OR 3.2, 95% CI 1.5–5.8), and concurrent head and neck injuries (OR 12.1, 95% CI 5.8–25.2). Legislative restrictions on e-scooter use, including speed limits and nighttime riding bans, were associated with a significant reduction in maxillofacial injuries. These findings highlight the importance of targeted policies to mitigate injury risks associated with e-scooter use.

We present an analysis of 388 patients with major complications of a total of 13,392 hospitalized patients after osteosynthesis from our Maxillofacial Trauma Registry, which has 13,392 patients from 2007 to 2023. This retrospective study aimed to provide a detailed overview of all moderate to severe complications in head and neck injuries after surgery. The AO system and the modified Clavien–Dindo classification serve as the basis for our clinical procedure (flow chart presented). The statistical analysis included descriptive methods and χ 2 -test. In seventeen years, the complication rate was 2.9% (Clavien–Dindo class II–V). More males were involved than females (3.04:1). The most complications were found in the mandibular angle, paramedian mandible, mandibular body, and lower condylar neck areas, as well as in frontal bone, zygomatic bone, and LeFort I fractures. Adequate treatment procedures allow a low complication rate. However, areas like the mandibular angle, paramedian mandible, lower condylar neck, Le Fort I fractures, or zygomatic bone fractures remain areas with higher risk of problems, which requires further research on necessary surgical methods.

Research protocolThe protocol was developed as per the recommendations of the Cochrane-handbook and PRISMA and was registered in PROSPERO.Literature searchSearch was performed by using MeSH-Terms and keywords in PubMed, Scopus, Embase, Web of Sciences, Lilacs, and Cochrane databases and gray literature sources 15th July 2022. There were no limits regarding the year of publication and language. Hand-searching of included articles was also performed. Titles and abstracts and later full texts were screened as per strict inclusion and exclusion criteria.Data extractionSelf-designed pilot-tested form was used.Quality appraisalRisk of bias was analyzed through Joanna-Brigg’s-Institute’s-critical appraisal checklist. The evidence analysis was done by using the GRADE approach.Data analysisQualitative synthesis was performed for describing the study characteristics, details of sampling, and results of various questionnaires. It was discussed by the expert group and presented using KAP heat map. Meta-analysis was done by using Random Effects Model.Results and interpretationThe risk of bias was found to be low in seven and moderate in one study. It was observed that >50% of parents knew about the urgency to seek professional advice after TDI. Only <50% of parents were confident of their ability to identify the injured tooth, clean the soiled avulsed tooth, and perform the replantation. Appropriate responses regarding immediate action after tooth avulsion were given by 54.5% (95% CI: 50.2–58.8, p = 0.042) of parents. The knowledge of the parents regarding the emergency management of TDI was found to be inadequate. The majority of them were interested in obtaining information about dental trauma first aid.

ObjectivesEndotracheal tube intubation by laryngoscope during general anesthesia is a safe procedure with a few complications. However, it may cause some damage to the oral cavity structures, which leads to postoperative pain and discomfort. Traumatic dental injuries associated with endotracheal tube intubation are one of the most common complications. The study aimed to determine the incidence of traumatic dental injuries during oral-endotracheal tube intubation in general anesthesia among children receiving surgery at the Children’s Hospital in Damascus City during 2022–2023.MethodsIt was a prospective longitudinal study which investigated the incidence of traumatic dental injuries during oral-endotracheal tube intubation under general anesthesia in 110 children aged 6–12 years old at the University Children’s Hospital in Damascus City in 2022. After ensuring that the child met inclusion criteria and obtained written consent. Each child was examined before, during, and after 12–24 h of entering the operation room. Personal information (gender – age), information related to anesthesia procedures, and some oral cavity characters were collected.ResultsThe incidence of traumatic dental injuries during general anesthesia was 9.1%. Most of them intra-oral soft tissue injuries. The concussion is the most common injury related to teeth damage. In addition, the tongue was the most common-place. There is a correlation between the incidence of traumatic dental injuries and the difficulty of intubation, the number of intubation attempts, Mallampati score (p < 0.05).ConclusionThe anesthesiologist should evaluate the condition of each patient carefully. Document every detail in their record and inform the patient of the possibility of dental damage during the procedures especially in the case that has difficulty intubation.

Research questionDoes dental trauma have impact on the oral health-related quality of life of children and adolescents?Research protocolProtocol was designed as per the best practices of evidence-based medicine, guidelines for umbrella reviews and registered in PROSPERO.Literature searchPubMed, Scopus, Embase, Web of Sciences and Lilacs were searched for studies meeting the inclusion criteria from start of databases to 15th July 2021. Grey literature and registries of systematic review protocols were also searched. Hand searching of the references of included articles was also performed. The literature search was updated on 15th October 2021. Scrutiny of the titles and abstracts and later full text was done as per the inclusion and exclusion criteria.Data extractionSelf-designed pre-piloted form was used by two reviewers.Quality appraisalAMSTAR-2 was used to assess the quality of systematic reviews, PRISMA was used to check reporting-characteristics and citation-matrix was used to evaluate study-overlap. Quality of evidence was assessed by using Kohler’s-criteria.Data analysisQualitative synthesis was performed for describing the study characteristics, details of sampling and the tool of OHRQoL used. The meta-analytic data was used for evaluating the evidence and its strength for each of the outcomes.Results and interpretationA significant impact of all types of TDI on OHRQoL in children and adolescents was observed. The effect of uncomplicated TDI on OHRQoL in children and all ages showed no difference from controls. Though the quality of evidence in these interpretations was weak.

Objective Dental traumas are one of the most common reasons for children to visit the dentist. This study aimed to investigate the predictors of mothers’ behavior based on the health belief model (HBM) for the prevention of dental trauma in 7–12-year-old children. Methods The current cross-sectional study was conducted on 700 mothers in Kashan city in 19 September 2023 to 2 March 2024 included in the study by multi-stage random cluster sampling method. The data collection tool was a valid and reliable researcher-made questionnaire consisting of demographic information, Knowledge, constructs of HBM, and preventive behavior for dental trauma. Data were analyzed using SPSS 21 and descriptive statistics (standard deviation, mean, median and range), inferential tests (Pearson correlation coefficient, regression) and path analysis to test the direct and indirect effect of model constructs on the dependent variable by AMOS software. Results Knowledge ( r  = 0.365, P  < 0.001), perceived benefits ( r  = 0.166, P  < 0.001), and self-efficacy ( r  = 0.425, P  < 0.001) had a positive correlation and perceived barriers ( r  = −0.313, P  < 0.001) had a negative correlation and a significant relationship with mothers’ preventive behaviors. Knowledge, perceived barriers and self-efficacy explained and predicted a total of 33% of preventive behavior changes (R-Square=0.329). In the path analysis, self-efficacy ( β  = 0.327, P  < 0.001), knowledge ( β  = 0.251, P  < 0.001) and perceived barriers ( β  = −0.242, P  < 0.001) had the most direct effect, and perceived severity ( β  = −0.017), perceived susceptibility ( β  = −0.004), and perceived benefits ( β  = 0.092) had an indirect effect on mothers’ preventive behaviors ( P  < 0.05). Conclusion Knowledge, self-efficacy, and perceived barriers were key predictors of mothers’ preventive behaviors. Interventions should target these factors to improve dental trauma prevention in children. The HBM effectively identified these predictors.

This study aimed to investigate the effects of low-intensity pulsed ultrasound (LIPUS) on replacement root resorption after replantation of avulsed teeth stored in a dry condition in dogs. A total of 73 premolar roots from four male mongrel dogs were intentionally avulsed with forceps and divided into four groups—HN, HL, DN, and DL—according to storage conditions and whether or not they received LIPUS treatment. Thirty-eight roots were kept in Hanks’ Balanced Salt Solution for 30 min (HN and HL groups), whereas the remaining 35 roots were left to dry in the air for an hour (DN and DL groups) prior to replantation. Following replantation, the roots in the HL and DL groups (21 and 18 roots, respectively) received a 20-min daily LIPUS treatment for 2 weeks. The animals were euthanized 4 weeks after the operation. Micro-computed tomography images were acquired for each root and the amount of replacement root resorption was measured three-dimensionally. Histological assessments were also carried out. There was significantly less replacement root resorption for the roots in the DL group compared to the DN group ( p  < 0.01). Histological findings in the DN group demonstrated evident replacement root resorption, whereas the DL group revealed less severe resorption compared to the DN group. Within the limitations, these results suggest that LIPUS could attenuate the replacement resorption of avulsed teeth stored in a dry condition, thereby improving their prognosis.