International journal of paediatric dentistry最新文献

Background: Social disadvantage leads to dental caries during childhood.

Aim: This study investigated whether dental caries occur earlier in children from households experiencing social disadvantage than those not experiencing social disadvantage.

Design: The overall risk of, and relative time to, early childhood caries (ECC) according to sociodemographic characteristics in Victoria, Australia, was quantified. Records for 134 463 children in Victoria, Australia, from 2009 to 2019 were analysed. Time ratios (TR) and hazard ratios (HR) of carious lesion(s) in early childhood were estimated.

Results: Compared with reference groups, Indigenous children had an adjusted TR of 0.80 (95% CI: 0.78, 0.82), children from households with languages other than English had an adjusted TR of 0.83 (95% CI: 0.82, 0.84), and dependants of concession cardholders had an adjusted TR of 0.81 (95% CI: 0.80, 0.81); therefore, 20%, 17% and 19% reduced times to the first carious lesion, respectively. The estimated HRs were 1.57 (95% CI: 1.49, 1.67) for Indigenous children, 1.46 (95% CI: 1.42, 1.50) for children from households with other languages and 1.57 (CI: 1.53, 1.60) for dependants of concession cardholders.

Conclusion: Preventive oral health interventions must be targeted early in children from households experiencing social disadvantage to avoid social inequities in ECC.

Background: Soft tissue anesthesia (STA) following inferior alveolar nerve block (IANB) anesthesia lasts 3-5 h. It is important to reverse STA after treatment to prevent soft tissue injury (STI).

Aim: This study evaluated photobiomodulation using a 660 nm diode laser on STA reversal and its impact on STI following IANB anesthesia.

Design: A randomized controlled clinical trial was conducted on 32 children, aged 5-8 years, allocated into the test and control groups. Anesthesia was administered; the operative procedure was performed followed by exposure to laser. STA reversal was monitored through lip tapping, current perception threshold (CPT) tests, and paediatric Functional Assessment Battery.

Results: The test group showed significantly faster recovery to normal sensation following exposure to laser than the control group which did not undergo any reversal (p < .0001), with a median time of 115 and 60 min according to lip tapping and CPT tests, respectively. The test group also showed significantly faster recovery to normal function (p = .016). The incidence of STI in the form of redness was significantly higher in the control group (p = .022).

Conclusion: Photobiomodulation using a 660 nm diode laser can be considered as an efficient approach to minimize STA and STI after dental interventions.

Background: Supervised toothbrushing (STB) significantly reduces the incidence and progression of dental caries. School years present a favorable age for introducing such healthy habits for a lifetime.

Aim: To estimate the cost-effectiveness of implementing a STB program in India in preventing dental caries incidence.

Design: An operational framework of a national STB program was devised. A mathematical model was then developed to evaluate this program's clinical effectiveness and economic impact in the Indian scenario. This study considered a hypothetical cohort of the Indian population aged from 6 to 75 years. Two groups were compared: no intervention and STB in government schools. The health outcomes assessed were a number of tooth caries incidences averted and quality-adjusted life years gained.

Results: The STB program in the government schools of India would prevent at least one tooth from developing caries in an individual's lifetime. Considering the current treatment-seeking behavior, the STB program saves INR 153 (US$ 1.95) per carious tooth incidence averted and INR 22 202 (US$ 283) per QALY gained.

Conclusion: In India, the school-based STB program is expected to be a cost-effective strategy for reducing the dental caries burden and its associated treatment costs.

Background: Mesiodens usually lead to the malposition and abnormal morphology of maxillary central incisors.

Aim: To evaluate the detrimental effects of single unilaterally impacted mesiodens on the three-dimensional positions and morphology of the maxillary central incisor using cone-beam computed tomographic (CBCT) examinations.

Design: A total of 321 patients aged 5-17 years with single unilaterally impacted mesiodens were included and divided into two groups: mixed dentition group (5-10 years) and early permanent dentition group (11-17 years). CBCT data for these patients were retrospectively analyzed to compare the inclination, rotation, angulation, and morphology of maxillary central incisors between the affected and contralateral control sides. The morphology, orientation, and spatial location of mesiodens were also assessed.

Results: Central incisors on the affected side showed significant palatal crown inclination, shorter root, shorter tooth, and greater crown-to-root ratio in both groups, whereas significant mesial crown angulation was only observed in the mixed dentition group.

Conclusion: Impacted mesiodentes result in the displacement and impaired root development of central incisors, strongly suggesting timely clinical management of these abnormal teeth, such as the early removal of mesiodens and orthodontic treatments.

Background: Little information on young people's and adults' views and experiences on decision-making for managing compromised first permanent molars (cFPM) exists.

Aim: To establish young people's and adults' views and experiences of decision-making for managing cFPM.

Design: Face-to-face (online) semi-structured interviews were undertaken using an iteratively designed topic guide. Participants aged 12-65 were purposively sampled with recruitment from different dental clinics (three primary care, an out-of-hours emergency and one dental hospital). Interviews were audio-recorded, transcribed verbatim and analysed using thematic analysis.

Results: Three themes were generated from young people's interviews (n = 9): (i) influencing factors; (ii) long-term considerations; and (iii) shared decision-making. Three themes were generated from adults' interviews (n = 13): (i) influences that affect decisions; (ii) perceptions of the specialist's role; and (iii) importance of shared decision-making for children and young people.

Conclusion: Several factors influenced decision-making; for young people, professional opinions were important, and parental/peer influences less so. For adults, it was based on decisions on their prior experiences. Adults felt young people were abnormal if referred to a specialist. Young people wanted autonomy in decision-making to be respected; in reality, their views were rarely heard. There is potential to increase young people's involvement in shared decision-making for cFPM, which aligns with their aspirations.

Background: Lysosomal storage diseases (LSDs), a group of inborn errors of metabolism, include various subtypes, for example, mucopolysaccharidosis (MPS) and Gaucher disease (GD). Besides the physical/mental disabilities, they suffer from several oral deteriorations.

Aim: To evaluate the oral health status of Egyptian children with LSD.

Design: Thirty LSD children and thirty non-LSD children were enrolled for this study according to the inclusion and exclusion criteria. Dental indices were used to assess caries prevalence and periodontal status. Saliva samples were collected from all enrolled children to estimate interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), and protein levels as well as Streptococcus mutans and Lactobacilli colony counts.

Results: Children with MPS and GD showed non-significant differences in decayed, missing, or filled teeth (DMFT) scores (p = .115). Scores of dmft showed a significant increase in MPS, but not in GD children (p = .020, p = .127). Children with LSD showed significantly increased Modified Gingival Index (MGI), Plaque Index (PI), Oral Hygiene Index (OHI-s) scores (p < .001) and salivary IL-6 and TNF-α (p = .007, p = .001, p < .0001, p = .002, respectively) and salivary total proteins (p = .001) levels. Unexpectedly, non-significant differences were observed in salivary Streptococcus mutans or Lactobacilli counts in children with MPS and GD (p = .058, p = .420, p = .502, p = .053, respectively).

Conclusion: To our knowledge, this is the first article that evaluates Egyptian children with LSD. We demonstrated high caries prevalence in primary teeth, not permanent teeth, in children with MPS and poor gingival/hygiene status in children with MPS and GD, which triggered a state of inflammation. The daily supplement intake prevented oral bacterial growth. The most probable cause of oral alterations is decreased salivary flow rate, as deduced from a significantly increased salivary protein.

Background: The use of panoramic radiography (PR) is a complementary examination to aid in the diagnosis of cases in paediatric dentistry. The lack of specific protocols for these devices, however, can result in high doses of radiation, affecting critical organs such as the thyroid.

Aim: To evaluate the discrepancies in ionizing radiation received by the thyroid during PR examinations using anthropomorphic paediatric simulators built from computed tomography images.

Design: Two anthropomorphic paediatric phantoms were printed and used, representing children aged 6 and 11 years, with an opening in the thyroid region for the insertion of dosimetric radiographic films. The simulators were subjected to different pre-existing protocols in the PR devices. The radiographic films were processed and analysed using a luxmeter.

Results: The radiation dose to the thyroid was higher in the 6-year-old phantom than in the 11-year-old phantom, for given exposure factors. In addition, there was an increase in dose in children's protocols compared with small adult protocols.

Conclusion: Therefore, companies that develop PR equipment must develop child protocols for separate age groups that will consequently reduce the radiation dose in children, especially in their critical organs.