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The Journal of Clinical Pediatric... Sep 2023The aim was to systematically evaluate the cost-effectiveness of pit and fissure sealants (PFSs) compared with that of fluoride varnishes (FVs) in dental caries...
The aim was to systematically evaluate the cost-effectiveness of pit and fissure sealants (PFSs) compared with that of fluoride varnishes (FVs) in dental caries prevention. We searched four electronic databases including the Cochrane Oral Health Group's Trials Register (till 03 June 2022), Web of Science (from 1945 to 03 June 2022), PubMed (from 1996 to 03 June 2022), and EMBASE Ovid (from 1980 to 03 June 2022) to identify the cost and effectiveness of PFSs and FVs in decreasing dental caries incidence. Two researchers independently screened search results, extracted data from the included studies, and conducted the risk of bias assessments. The main characteristics of the included studies were extracted and analyzed. The initial search produced 874 articles. After removing duplicates and full-text review, 19 studies were included. In this study: nine studies were on PFSs comparison with control; five on PFSs comparison with FVs; and five on FVs comparison with control. Regarding the type of economic evaluation (EE), 13 studies conducted cost-effectiveness analysis, five conducted cost-utility analyses, and one conducted both cost-effectiveness analysis and cost-utility analyses. The cost-effectiveness evaluation of PFSs and FVs in the available studies was limited. The prevalence of dental caries, payers' willingness to pay, length of follow-ups, delivery settings, retention rate of PFS, and application intervals of FV can affect the economic evaluation of these two methods for dental caries prevention. Therefore, more studies in the future are need to draw clear conclusions about which method is more cost-effective for the two preventive interventions in future.
Topics: Humans; Cost-Benefit Analysis; Fluorides, Topical; Pit and Fissure Sealants; Dental Caries; Cost-Effectiveness Analysis
PubMed: 37732430
DOI: 10.22514/jocpd.2023.048 -
PloS One 2023The occlusal surfaces of natural teeth have complex features of functional pits and fissures. These morphological features directly affect the occlusal state of the...
The occlusal surfaces of natural teeth have complex features of functional pits and fissures. These morphological features directly affect the occlusal state of the upper and lower teeth. An image generation technology for functional occlusal pits and fissures is proposed to address the lack of local detailed crown surface features in existing dental restoration methods. First, tooth depth image datasets were constructed using an orthogonal projection method. Second, the optimization and improvement of the model parameters were guided by introducing the jaw position spatial constraint, the L1 loss and the perceptual loss functions. Finally, two image quality evaluation metrics were applied to evaluate the quality of the generated images, and deform the dental crown by using the generated occlusal pits and fissures as constraints to compare with expert data. The results showed that the images generated using the network constructed in this study had high quality, and the detailed pit and fissure features on the crown were effectively restored, with a standard deviation of 0.1802mm compared to the expert-designed tooth crown models.
Topics: Humans; Benchmarking; Mouth, Edentulous; Technology
PubMed: 37725620
DOI: 10.1371/journal.pone.0291728 -
International Journal of Clinical... Aug 2023Pit and fissure caries account for about 90% of caries in children and adolescents. Sealant application may be a preventive conservative approach. But it's still...
Comparative Evaluation of the Microleakage and Shear Bond Strength of Three Filled Pit and Fissure Sealants Using Subpressure and Adhesive System: An Experimental Analysis.
INTRODUCTION
Pit and fissure caries account for about 90% of caries in children and adolescents. Sealant application may be a preventive conservative approach. But it's still challenging to bolster the retention of the filled sealant and to chop back the microleakage.
AIM
Aim is to evaluate and compare the microleakage and shear bond strength (SBS) of three filled pit and fissure sealants (PFS) using a subpressure and adhesive system: an experimental analysis.
MATERIALS AND METHODS
A total of 90 orthodontically extracted premolars were prepared for microleakage and SBS and divided according to materials and subgroups. Group I: resin-based filled PFS, group II: resin-modified glass ionomer-based filled PFS, and group III: giomer-based filled PFS. Subgroup 1: only sealant application, subgroup 2: subpressure application, and subgroup 3: adhesive system + subpressure application. Samples were subjected to thermocycling. Microleakage was assessed with a dye penetration method under a stereomicroscope, and SBS was assessed with a universal testing machine.
STATISTICAL ANALYSIS AND RESULTS
Unpaired -test and one-way analysis of variance (ANOVA) test were used for analysis. Significant when < 0.05. The SBS showed significant results for subpressure application and giomer-based filled PFS with < 0.05. The microleakages score differed significantly for the subpressure application group with < 0.05. Giomer-based filled PFS showed the least microleakage score.
CONCLUSION
This study concluded that giomer-based filled PFS showed statistically significant results. The subpressure technique significantly reduces microleakage and increases SBS.
HOW TO CITE THIS ARTICLE
Waghmode SK, Devendrappa SN, Hadakar SG, Comparative Evaluation of the Microleakage and Shear Bond Strength of Three Filled Pit and Fissure Sealants Using Subpressure and Adhesive System: An Experimental Analysis. Int J Clin Pediatr Dent 2023;16(S-1):S97-S100.
PubMed: 37663217
DOI: 10.5005/jp-journals-10005-2633 -
International Journal of Clinical... Aug 2023The preventive benefits of pit and fissure sealants rely on their retention and sealing ability. The drawback of the conventional pit and fissure sealant is its poor...
INTRODUCTION/BACKGROUND
The preventive benefits of pit and fissure sealants rely on their retention and sealing ability. The drawback of the conventional pit and fissure sealant is its poor retention due to the presence of moisture. Among the numerous pit and fissure sealants available, newer hydrophilic sealants are ideal for children. This study evaluates and compares the sealing ability of hydrophilic sealant Embrace WetBond with conventionally used glass ionomer sealant under a stereomicroscope.
MATERIALS AND METHODS
A total of 48 extracted human premolars were randomly divided into two groups ( = 24) and sealed with Embrace WetBond and GC Fuji VII as per manufacturers' instructions. Following thermocycling, the sectioned samples were evaluated for sealant penetration, unfilled space, and total length of fissure under a stereomicroscope at magnifications 2.5×, 4×, and 5×. The values were measured in microns and in various fissure types using the "ImageJ app" to measure the sealant penetrability and sealing ability. The data recorded were statistically evaluated.
RESULTS
The penetrability of moisture-tolerant sealant was better (87.8 ± 10.7) compared to that of glass ionomer sealant (73.8 ± 15.5) ( = 0.002). Among the samples, U-type fissure patterns displayed greater penetrability (94.2 ± 6.2), whereas IK-type fissures revealed the lowest degree of penetrability (67.5 ± 7.3).
CONCLUSION
Embrace WetBond is better than glass ionomer sealant with respect to penetrability and sealing ability under stereomicroscope hence recommended as a better sealant for pediatric clinical practice.
HOW TO CITE THIS ARTICLE
Priscilla S, Shivashankarappa PG, Mohandoss S, Comparative Evaluation of Sealing Ability of Moisture-tolerant Sealant and Glass Ionomer Sealant Using Stereomicroscope: An In Study. Int J Clin Pediatr Dent 2023;16(S-1):S67-S71.
PubMed: 37663211
DOI: 10.5005/jp-journals-10005-2601 -
Journal of the American Dental... Oct 2023The purpose of this study was to assess the effects of the COVID-19 pandemic on oral health care provided from July 2020 through December 2021 using national claims data.
BACKGROUND
The purpose of this study was to assess the effects of the COVID-19 pandemic on oral health care provided from July 2020 through December 2021 using national claims data.
METHODS
Deidentified quarterly claims from 2017 through 2021 were analyzed (2017-2019 provided prepandemic data). Data were sorted into multiple treatment categories. Analyses compared prepandemic with postpandemic procedure volumes and were stratified according to age groups (0-5 years, 6-18 years, 19-64 years, ≥ 65 years).
RESULTS
For children aged 0 through 5 years, use of sealants and topical fluorides other than varnish were considerably lower in 2021, as were direct operative and palliative procedures from 2020 through 2021. Only use of silver diamine fluoride, prefabricated crowns, and oral surgery increased significantly (P < .05) in some quarters. For children aged 6 through 18 years, diagnostic, direct operative, periodontic, oral surgery, and palliative procedures were significantly lower in most of 2020 through 2021, and only prefabricated crowns and indirect operative procedures increased significantly in more than 3 quarters. For adults aged 19 through 64 years, diagnostic and preventive procedures were significantly lower in 3 quarters, and direct operative, gingival surgery, endodontic, and palliative procedures were significantly lower in most of 2020 through 2021. Only occlusal guards and scaling and root planing increased significantly in more than 3 quarters. For adults 65 years and older, direct operative, gingival and osseous surgery, and palliative procedures were significantly lower in more than 3 quarters; all other procedures increased significantly in more than 3 quarters.
CONCLUSIONS
The pandemic was associated with changes in the provision of oral health care that persisted for more than 1 year.
PRACTICAL IMPLICATIONS
Reductions in preventive procedure volumes across age groups younger than 65 years may have implications for longer-term effects of the pandemic.
Topics: Child; Adult; Humans; United States; Dental Caries; Pandemics; Pit and Fissure Sealants; COVID-19; Fluorides, Topical; Delivery of Health Care
PubMed: 37656082
DOI: 10.1016/j.adaj.2023.07.012 -
Lin Chuang Er Bi Yan Hou Tou Jing Wai... Sep 2023By analyzing the clinical phenotypic characteristics and gene sequences of two patients with Treacher Collins syndrome(TCS), the biological causes of the disease...
By analyzing the clinical phenotypic characteristics and gene sequences of two patients with Treacher Collins syndrome(TCS), the biological causes of the disease were determined. Then discuss the therapeutic effect of hearing intervention after bone bridge implantation. All clinical data of the two family members were collected, and the patients signed the informed consent. The peripheral blood of the proband and family members was extracted, DNA was extracted for whole exome sequencing, and Sanger sequencing was performed on the family members for the mutation site.genetic mutations analysis was performed on the paitents. Then, the hearing threshold and speech recognition rate of family 2 proband were evaluated and compared under the sound field between bare ear and wearing bone bridge. In the two pedigrees, the probands of both families presented with auricle deformity, zygomatic and mandibular hypoplasia, micrognathia, hypotropia of the eye fissure, and hypoplasia of the medial eyelashes. The proband of Family 1 also presents with specific features including right-sided narrow anterior nasal aperture and dental hypoplasia, which were consistent with the clinical diagnosis of Treacher Collins syndrome. Genetic testing was conducted on both families, and two heterozygous mutations were identified in the gene: c. 1350_1351dupGG(p. A451Gfs*43) and c. 4362_4366del(p. K1457Efs*12), resulting in frameshift mutations in the amino acid sequence. Sanger sequencing validation of the gene in the parents of the proband in Family 1 did not detect any mutations. Proband 1 c. 1350_1351dupGG heterozygous variants have not been reported previously. The postoperative monosyllabic speech recognition rate of family 2 proband was 76%, the Categories of Auditory Performance(CAP) score was 6, and the Speech Intelligibility Rating(SIR) score was 4. Assessment using the Meaningful Auditory Integration Scale(MAIS) showed notable improvement in the patient's auditory perception, comprehension, and usage of hearing aids. Evaluation using the Glasgow Children's Benefit Inventory and quality of life assessment revealed significant improvements in the child's self care abilities, daily living and learning, social interactions, and psychological well being, as perceived by the parents. This study has elucidated the biological cause of Treacher Collins syndrome, enriched the spectrum of gene mutations in the Chinese population, and demonstrated that bone bridge implantation can improve the auditory and speech recognition rates in TCS patients.
Topics: Child; Humans; Mandibulofacial Dysostosis; Quality of Life; Speech; Parents; Mutation; Nuclear Proteins; Phosphoproteins
PubMed: 37640998
DOI: 10.13201/j.issn.2096-7993.2023.09.011 -
Journal of Oral Science Oct 2023To evaluate the marginal integrity of various pit and fissure sealants subjected to different application methods.
PURPOSE
To evaluate the marginal integrity of various pit and fissure sealants subjected to different application methods.
METHODS
A total of 253 non-carious human third molars extracted and randomly divided into two groups according to the preparation method employed: invasive or non-invasive. Eight fissure sealant materials were tested: nano-filled flowable composite (Filtek Ultimate Flow), nanohybrid flowable composite (GrandioSo Flow), micro-hybrid flowable composite (Majesty Flow), resin-based unfilled fissure sealant (ClinPro Sealant), resin-based filled fissure sealant (Fissurit FX), resin-based highly filled fissure sealant (GrandioSeal), giomer-based fissure sealant (BeautiSealant), and glass ionomer-based fissure sealant (Fuji Triage). Samples were subjected to two-year cyclic thermo-mechanical and brushing simulations. Two observers quantitatively evaluated the restoration margins and classified them as either "permanent restoration edge", or if a gap larger than 250 μm was evident, "gapping at the restoration edge". The extent of the gap was recorded as a percentage relative to the total length of the restoration edge.
RESULTS
The baseline marginal adaptation had no significant effect on the marginal adaptation (P > 0.05). However, the preparation method and type of fissure sealant material had a significant impact on the marginal adaptation (P < 0.05).
CONCLUSION
On the basis of quantitative analysis, the highest marginal integrity was observed for flowable composites, whereas the lowest was observed for glass ionomer-based fissure sealant.
Topics: Humans; Pit and Fissure Sealants; Dental Caries; Acrylic Resins; Silicon Dioxide
PubMed: 37518766
DOI: 10.2334/josnusd.23-0126 -
World Journal of Clinical Cases Jul 2023Subcutaneous emphysema is a well-known complication of oral surgery, especially during mandibular wisdom tooth extraction. However, subcutaneous emphysema secondary to...
BACKGROUND
Subcutaneous emphysema is a well-known complication of oral surgery, especially during mandibular wisdom tooth extraction. However, subcutaneous emphysema secondary to dental procedures such as crown preparation is rare. The main symptom of emphysema is swelling and crepitus on palpation. Uncontrolled emphysema may spread along the fascial planes and cause deep space infections or a pneumomediastinum.
CASE SUMMARY
In this paper, we report a 34-year-old female who underwent upper molar tooth preparation for crowns and subsequently developed extensive subcutaneous emphysema on the retromandibular angle on two different occasions. The treatment plan for this patient involved close observation of the airway, and administration of dexamethasone and antibiotics intravenous drip or orally. Ice bag compression was quickly applied and medication was prescribed to alleviate discomfort and promote healing. Although the main reason is unclear, the presence of a fissure in the molar is an important clue which may contribute to the development of subcutaneous emphysema during crown preparation. It is imperative for dental professionals to recognize such pre-disposing factors in order to minimize the risk of complications.
CONCLUSION
This case highlights the need for prompt diagnosis and management of subcutaneous emphysema because of the risk of much more serious complications. Awareness of relatively "benign" subcutaneous emphysema during any dental procedure is critical not only for inexperienced dentists, but also for those who work in rural and remote settings as members of surgical teams. In this study, we review the clinical presentation, mechanism, and differential diagnosis of subcutaneous emphysema.
PubMed: 37469734
DOI: 10.12998/wjcc.v11.i19.4698 -
International Dental Journal Oct 2023The early or delayed surgical removal of an asymptomatic lower third molar (M3) in orthodontic patients remains controversial. This study aimed to determine the changes...
OBJECTIVES
The early or delayed surgical removal of an asymptomatic lower third molar (M3) in orthodontic patients remains controversial. This study aimed to determine the changes in the impacted level of M3 such as angulation, vertical position, and eruption space, after orthodontic treatment in 3 groups, namely non-extraction (NE), first premolar (P1) extraction, and second premolar (P2) extraction.
METHODS
Relevant angles and distances related to 334 M3s from 180 orthodontic patients were assessed pre- and posttreatment. Angle between lower second molar (M2) and M3 (M3-M2) was used for evaluating M3 angulation. For M3 vertical position, distances from occlusal plane to the highest cuspid (Cus-OP) and fissure (Fis-OP) of M3 were used. Distances from the distal surface of M2 to anterior border (J-DM2) and centre (Xi-DM2) of the ramus were used for assessing M3 eruption space. Pre- and posttreatment values of the angle and distance in each group were compared using a paired-sample t test. Measurements of the 3 groups were compared using analysis of variance. Hence, multiple linear regression (MLR) analysis was used to determine significant factors that impacted changes in M3s' related measurements. Independent factors used for MLR analysis included sex, treatment starting age, pretreatment respective angle/distance, and premolar extraction (NE/P1/P2).
RESULTS
M3 angulation, vertical position, and eruption space at posttreatment were significantly different from those at pretreatment in all 3 groups. MLR analysis showed that P2 extraction significantly improved M3 vertical position (P < .05) and eruption space (P < .001). P1 extraction significantly decreased Cus-OP (P = .014) and eruption space (P < .001). Treatment starting age was significant factor that affected Cus-OP (P = .001) and M3 eruption space (P < .001).
CONCLUSIONS
After orthodontic treatment, M3 angulation, vertical position, and eruption space changed in favour of the impacted level. These changes in the 3 groups were clearer in order: NE, P1, and P2, respectively.
Topics: Humans; Molar, Third; Tooth Extraction; Molar; Dental Care; Tooth Eruption; Tooth, Impacted; Mandible
PubMed: 36868979
DOI: 10.1016/j.identj.2023.01.006