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Materials (Basel, Switzerland) May 2024The purpose of the present study was to perform a preliminary analysis of the fitting of different fiber-reinforced composite (GFRC) posts to tooth root canals and...
The purpose of the present study was to perform a preliminary analysis of the fitting of different fiber-reinforced composite (GFRC) posts to tooth root canals and determine the resin cement layer thickness. The following GFRC posts were assessed: bundle posts (Rebilda GT, VOCO, Germany), sleeve system (SAP, Angelus Ind, Brazil), and accessory posts (Reforpin, Angelus, Brazil). Twenty-four freshly extracted mandibular single-rooted pre-molars were endodontically treated and divided into six groups, according to the type of GFRC post and resin cement (self-adhesive or conventional dual-cured). Then, specimens were cross-sectioned and inspected by optical microscopy regarding the cement layer thickness and presence of defects such as pores, voids, or fissures were assessed. Bundle and accessory posts revealed a regular distribution of resin cement with a lower number of voids than found with sleeve systems. The sleeve system posts showed poor fitting at the apical portion of the root canals. The type of resin cement did not affect the thickness of the interface, although both bundle and accessory posts allow a better distribution of resin cement and fibers. The present preliminary study reveals interesting insights on the fitting of bundle and accessory posts to root dentin and resin cement layer thickness in oval-shape root canals. The sleeve system posts showed adequate fitting only at the coronal portion of the canals.
PubMed: 38893784
DOI: 10.3390/ma17112520 -
The Saudi Dental Journal Jun 2024This randomized clinical trial aimed to evaluate the impact of DryShield isolation (DSI) and rubber dam isolation (RDI) system usage on vital signs, behavior, pain and...
OBJECTIVES
This randomized clinical trial aimed to evaluate the impact of DryShield isolation (DSI) and rubber dam isolation (RDI) system usage on vital signs, behavior, pain and discomfort, and chairside time required among children with different airway patencies based on the Modified Mallampati Classification (MMC).
MATERIAL AND METHODS
Healthy, cooperative children who required fissure sealant in at least two contralateral, fully erupted, permanent first molars were included. Airway patency was determined by two trained and calibrated dentists using the MMC. The participants were categorized based on their MMC scores into patent airways (classes I and II) and non-patent airways (classes III and IV). The dental procedure was videotaped during treatment, and vital signs, including arterial oxygen saturation, heart rate, and blood pressure, were recorded every 3 min. The participants' subjective pain and discomfort were evaluated using a previously validated Arabic interview questionnaire and a validated Arabic version of the Wong-Baker Faces Pain Rating Scale. The participants' behavior and behavioral pain were evaluated utilizing the Frankl Behavior Scale and the face, legs, activity, cry, and consolability scales, respectively.
RESULTS
There were no significant differences in any of the vital signs between DSI and RDI. DSI use yielded a significant reduction in chairside time ( < 0.001) and was more bothersome ( < 0.001) than RDI use among all participants, regardless of airway patency. DSI was associated with significantly better behavior during the dental procedure ( = 0.002) and less behavioral pain ( < 0.001) among all participants, regardless of airway patency.
CONCLUSION
Irrespective of airway patency, DSI outperformed RDI in terms of behavior, pain, and procedure duration; however, DSI was characterized by noise, pressure on soft tissues, and an increased tendency to induce gag reflexes.
PubMed: 38883897
DOI: 10.1016/j.sdentj.2024.03.013 -
Bioinformation 2024A preferable choice of material offers superior resistance against micro-leakage for clinical applications in preventing dental caries in pits and fissures is of...
A preferable choice of material offers superior resistance against micro-leakage for clinical applications in preventing dental caries in pits and fissures is of interest. A total of 45 extracted human premolars were cleaned, stored in a saline solution, and randomly divided into three groups, each intended for treatment with one of the sealants: Fuzi VII, ClinPro, and Embrace Wetbond. The application of the sealants followed the manufacturers' instructions strictly. The teeth were subjected to thermal cycling to simulate oral conditions. Marginal micro-leakage was then assessed by dye penetration method using a 0.5% methylene blue dye. Teeth were sectioned, and dye penetration was measured under a stereomicroscope. The results showed that all the tested materials exhibited some degree of micro-leakage. Within the limitations of this study, it was concluded that Embrace Wetbond exhibited superior performance in terms of minimizing marginal micro-leakage among the tested pit and fissure sealants.
PubMed: 38854762
DOI: 10.6026/973206300200319 -
Frontiers in Cellular and Infection... 2024Alveolar cleft (AC) is a common congenital defect in people with cleft lip and palate (CLP). Alveolar bone grafting (ABG) is typically performed during adolescence,...
INTRODUCTION
Alveolar cleft (AC) is a common congenital defect in people with cleft lip and palate (CLP). Alveolar bone grafting (ABG) is typically performed during adolescence, resulting in the fissure remaining in the mouth for a longer length of time. Patients with AC have a greater rate of oral diseases such as dental caries than the normal population, and the precise characteristics of the bacterial alterations caused by AC are unknown.
METHODS
We recruited a total of 87 subjects and collected dental plaque samples from AC adolescents (AAP), post-operative ABG adolescents (PAP), healthy control adolescents (CAP), AC young adults (AYP), post-operative ABG young adults (PYP), and healthy control young adults (CYP). The sequencing of 16S rRNA genes was performed.
RESULTS
The microbial composition of plaque from alveolar cleft patients differed significantly from age-matched healthy controls. Linear discriminant analysis effect size (LEfSe) analysis revealed that AAP was enriched for , and , whereas AYP was enriched for , and . There were phenotypic differences in facultatively anaerobic, Gram-negative, Gram-positive, and oxidative stress tolerance between the AYP group with longer alveolar cleft and the healthy control group according to Bugbase phenotypic predictions. Alveolar bone grafting did not alter the functional phenotype of alveolar cleft patients but reduced the number of differential genera between alveolar cleft patients and healthy controls at both ages.
CONCLUSIONS
Our study systematically characterized the supragingival plaque microbiota of alveolar cleft patients, post-alveolar bone grafting patients, and matched healthy controls in two ages to gain a better understanding of plaque ecology and microbiology associated with alveolar clefts.
Topics: Humans; Dental Plaque; Cleft Palate; Adolescent; Microbiota; RNA, Ribosomal, 16S; Female; Male; Cleft Lip; Young Adult; Bacteria; Alveolar Bone Grafting; Adult
PubMed: 38800834
DOI: 10.3389/fcimb.2024.1361206 -
Medicina (Kaunas, Lithuania) May 2024: Sealant application is a proven method to prevent occlusal caries; however, long-term studies on this topic are scarce. This study aimed to assess the survival rate...
: Sealant application is a proven method to prevent occlusal caries; however, long-term studies on this topic are scarce. This study aimed to assess the survival rate and clinical effectiveness of glass ionomer cement (GIC) and resin-based sealants (RBSs) on second permanent molars over a long-term follow-up period. Sixteen patients aged 11-13 years with all four completely erupted permanent second molars were enrolled in the study. All patients attended 1-year and 3-year follow-ups; however, one participant did not respond after 10 years and was excluded from the final analyses. The oral health status evaluation was based on WHO criteria. A total of 32 teeth received an RBS (Clinpro), and a further 32 teeth were sealed with GIC (Fuji IX). The sealant retention was determined according to the Kilpatrick criteria after 1 year, 3 years, and 10 years, respectively. Statistical analysis included a chi-square test, the Kaplan-Meier method, and the Cox proportional hazard model. : At baseline, seven boys and eight girls participated in the study, with a mean age of 12.3 ± 0.9 years. The 1-year follow-up results revealed that 90% of the RBSs and 43.3% of the GIC sealants were completely retained, and no caries lesions were recorded ( = 0.01). The 3-year follow-up results showed that 23.3% of the RBSs and 0% of the GIC sealants demonstrated complete retention ( = 0.034). Moreover, 10.0% of the occlusal surfaces in the RBS group and 13.3% of the occlusal surfaces in the GIC group were filled ( > 0.05). A total of 6.7% of the RBSs showed complete retention. One-third of the sealed teeth (30.0% of the teeth sealed with RBSs and 36.7% of teeth applied with GIC) were filled after 10 years. The Kaplan-Meier analysis demonstrated a higher survival rate in the RBS group when compared with the GIC over the entire follow-up period ( = 0.001). : Although the survival rate of RBSs was higher than GIC sealants, their effectiveness in preventing fissure caries in permanent second molars did not differ significantly over a 10-year follow-up.
Topics: Humans; Glass Ionomer Cements; Female; Male; Child; Follow-Up Studies; Pit and Fissure Sealants; Adolescent; Dental Caries; Molar; Survival Analysis; Composite Resins; Resin Cements
PubMed: 38792939
DOI: 10.3390/medicina60050756 -
Medicina (Kaunas, Lithuania) Apr 2024: The therapeutic management of carious lesions remains a significant focus for researchers, given their persistently high prevalence despite being largely preventable....
: The therapeutic management of carious lesions remains a significant focus for researchers, given their persistently high prevalence despite being largely preventable. This study aimed to compare the effectiveness of a composite resin-based sealant material in halting extended non-cavitated dentin carious lesions when used therapeutically versus preventively on caries-free teeth over a period of twelve months. : out of the 236 children examined, 45 were excluded from the study due to non-compliance with the inclusion criteria. Thus, the study included 191 children aged 10-12 years, and 764 molars in total. : among these molars, 171 were caries-free (ICDAS II code 0), forming the Control group, while 180 molars were classified with an ICDAS II score of 3, forming the Study group. All molars were sealed and evaluated at 6- and 12-month follow-up intervals. Both intervals revealed statistically significant differences ( < 0.05) in sealant retention and carious lesion development between sound (ICDAS code 0) and decayed (ICDAS code 3) teeth. : the findings did not support the effectiveness of sealants in halting non-cavitated dentin carious lesions classified as ICDAS II with code 3 compared to their preventive application in sound teeth classified as ICDAS II with code 0.
Topics: Humans; Dental Caries; Child; Pit and Fissure Sealants; Female; Male; Follow-Up Studies; Composite Resins; Molar; Treatment Outcome
PubMed: 38792917
DOI: 10.3390/medicina60050734 -
Cureus Apr 2024Introduction Anxiety is an emotion representing apprehension towards an unknown stimulus or situation. Rubber dam application during dental procedures in children makes...
Introduction Anxiety is an emotion representing apprehension towards an unknown stimulus or situation. Rubber dam application during dental procedures in children makes the treatment more comfortable and acceptable as it gives them a psychological feeling that treatment is being carried out outside the oral cavity. The prime objective of this study was to evaluate and compare physiological parameters, which include pulse rate, arterial oxygen saturation level, blood pressure, and respiratory rate before and after rubber dam isolation. Material and methods The study consisted of 30 children patients of 7-10 years, comprised of 14 females and 16 males with a mean age of 8.15 ± 0.93 years. The study was a 'split mouth' clinical design study, where 60 sites in 30 patients (two sites in each patient) were used. The selected sites were divided into two groups by a convenience sampling method and were categorized as Group-I (control group - 30 sites were treated with pit and fissure sealants under cotton roll and saliva ejectors on mandibular right permanent first molar) and Group-II (study group - 30 sites were treated with pit and fissure sealants underrubber dam isolation on mandibular left permanent first molar). Results Rubber dam application reduced different physiological parameters of stress such as pulse rate, systolic and diastolic blood pressure, and respiratory rate at different intervals from the baseline values. Rubber dam and cotton roll applications have no significant effects on oxygen saturation levels at different intervals in healthy individuals. From statistical analysis, it was evident that a statistically significant difference was evident between the control and experimental groups (P value < 0.005). Conclusion It is confirmed in this study that rubber dam reduces different physiologic parameters of stress. After the application of the rubber dam, children's pulse rate, systolic and diastolic blood pressure, and respiratory rate were reduced. Clinical significance The study highlights the imperative role of rubber dam isolation in improving dental and medical effectiveness. In addendum to this, our research promotes the clinical use of rubber dams in pediatric dentistry.
PubMed: 38770463
DOI: 10.7759/cureus.58615 -
The Journal of Clinical Pediatric... May 2024Patients being reported for vitamin D deficiency (VDD) are increasing, particularly among the children and adolescents. This study aims to manifest the clinical and...
Patients being reported for vitamin D deficiency (VDD) are increasing, particularly among the children and adolescents. This study aims to manifest the clinical and dental evaluations of a child with VDD, referred to the dental office. A 10-year-old British Asian boy was referred to the paediatric specialist dentistry clinic by the general dentist for dental management. The medical history depicted that the patient was diagnosed with VDD, secondary hyperparathyroidism and delayed growth. Moreover, his mother had the VDD during pregnancy. The patient was breast fed and had rickets in infancy. He was prescribed vitamin D supplements at the age of 16 months. He had received multiple dental treatments under local anaesthesia but with limited cooperation. Clinical examination revealed that the patient had chronological enamel hypoplasia shown as bands at the occlusal third on specific teeth. Suboptimal hygiene with general plaque induced gingivitis, dental caries in permanent and primary teeth, and delayed the teeth eruption. Preventions included appropriate oral hygiene and dietary advice, fluoride varnish application and fissure sealant placement. The treatments included anterior direct composite restoration, posterior composite restoration, stainless steel crowns and extractions. Thorough medical history is essential to understand the underlying causes of dental defects. Early dental intervention can restore the patient appearance and function and prevent further dental damage.
Topics: Humans; Male; Dental Enamel Hypoplasia; Child; Vitamin D Deficiency; Hyperparathyroidism, Secondary; Dental Caries; Pit and Fissure Sealants; Growth Disorders; Crowns; Rickets; Gingivitis; Pregnancy; Dental Restoration, Permanent; Female; Tooth Extraction
PubMed: 38755997
DOI: 10.22514/jocpd.2024.072 -
Brazilian Oral Research 2024The aim of this study was to identify and analyze the characteristics of the 100 most cited articles about dental sealants (DS) in dentistry. In September 2023, a search...
The aim of this study was to identify and analyze the characteristics of the 100 most cited articles about dental sealants (DS) in dentistry. In September 2023, a search was performed in the Web of Science Core Collection (WoS-CC) database. The following information was extracted from each article: number and density of citations, year of publication, authorship, journal, impact factor, keywords, study design, theme, continent, country, and institution. The citations of the WoS-CC were compared with those of the Scopus and Google Scholar databases. The VOSviewer software was used to generate collaborative networks. The number of citations ranged from 33 to 205. The articles were published between 1961 and 2016. Buonocore MG (7%) was the most prominent author among the most cited. The Journal of the American Dental Association was the most frequent journal (25%) and Journal of Dental Research (7.6) had the highest impact factor. Most studies had interventional (41%) and laboratory (31%) designs, mainly addressing DS effectiveness in the prevention and control of dental caries (86%). There was a predominance of publications from North America (46%) and the USA was the country with the highest number of articles (44%). The most frequent institutions were the Centers for Disease Control and Prevention (USA) and the University of Rochester (USA) (6% each). "Retention" was the most frequent keyword. In conclusion, the 100 most cited articles were mostly interventional and laboratory studies, addressing the retention and efficacy of DS. Most of the articles were concentrated in North America and Europe, demonstrating a little collaboration from other continents.
Topics: Bibliometrics; Pit and Fissure Sealants; Humans; Dental Research; Journal Impact Factor; Periodicals as Topic; Dental Caries; Dentistry
PubMed: 38747831
DOI: 10.1590/1807-3107bor-2024.vol38.0044