Hypnosis and nitrous oxide impact on the school aged patients' anxiety and cooperation candidate for tooth extraction: A randomized clinical trial.

Background: This randomized clinical trial (RCT) investigated whether hypnosis would lead to favorable outcomes in reducing anxiety, enhancing cooperation, and improving physiological responses in school-aged children undergoing tooth extraction compared to nitrous oxide/oxygen (NO/O) and conventional behavior guidance (CBG).

Methods: Sixty-six school-aged children (mean age: 7.87 ± 1.

Investigating the efficacy of a varnish containing gallic acid on remineralization of enamel lesions: an in vitro study.

This study evaluated the efficacy of a formulated remineralizing gallic acid (GA) varnish in treating artificial enamel caries lesions. Fifty-five intact bovine incisors were collected. Enamel blocks (5 × 9 mm) were prepared.

Effects of probiotic yogurt, casein phosphopeptide-amorphous calcium phosphate, and xylitol chewing gums on the salivary count of : A single-blinded randomized controlled clinical trial.

Background: Dental caries is a preventable multifactorial disease, with being suggested to be its primary pathogen. Our study aim was to compare the effects of three different low-cost and easy-to-use regimens with that of the gold standard (chlorhexidine [CHX] mouthwash) on the count of salivary in dental students over 30 days.

Materials And Methods: In this single-blinded parallel randomized controlled clinical trial, a total of 120 dental students were included and randomly allocated into four intervention groups: (1) CHX mouthwash (control(, (2) probiotic yogurt, (3) casein phosphopeptide-amorphous calcium phosphate chewing gum, and (4) xylitol chewing gum.

Barriers to the Accessibility of Emergency Pediatric Dental Care Services during the COVID-19 Pandemic: A Qualitative Study in Mashhad, Iran.

The aim of this study was to investigate barriers to the accessibility of emergency pediatric dental care services during the coronavirus disease 2019 (COVID-19) pandemic from the viewpoint of parents in Mashhad, Iran. A qualitative study was conducted on a purposive sample of parents seeking emergency dental care for their children during the COVID-19 pandemic. Data were collected through semi-structured face-to-face interviews.

Evaluation of the Impact of Dentoalveolar Trauma Management Training Course on Physicians and Dentists' Education in Multiple Hospitals in Mashhad, Iran.

Dental trauma injuries are the second most common traumatic injuries among children and adolescents. An incorrect diagnosis or a delayed treatment of traumatic injuries may lead to irreparable damages. Thus, proper management provided by physicians and dentists is crucial for patients affected by these injuries.

Cytotoxicity and induced apoptosis of a new bioceramic cement containing simvastatin on stem cells from human exfoliated deciduous teeth.

Background: This study aims to compare cytotoxicity and induced apoptosis of a new bioceramic cement containing different concentrations of simvastatin on stem cells from human exfoliated deciduous teeth (SHED).

Materials And Methods: This research was an study. To evaluate the cytotoxicity and induced apoptosis of the bioceramic cement containing different concentrations of simvastatin, the SHED were exposed to the cement during 1, 3, and 7 days.

Effect of Casein Phosphopeptide Amorphous Calcium Phosphate and Xylitol Chewing Gums, and Probiotic Yogurt on Periodontal Parameters: A Randomized Clinical Trial.

This study aimed to assess the effect of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) and xylitol chewing gums, and probiotic yogurt, as chemical plaque control strategies, on periodontal parameters. This randomized clinical trial evaluated 120 eligible dental students that were randomly divided into four groups (n=30) for use of (I) CPP-ACP chewing gum, (II) xylitol chewing gum, (III) probiotic yogurt, and (IV) chlorhexidine (CHX) mouthwash. The oral hygiene index-simplified (OHI-S), Silness and Loe gingival index (GI), and Silness and Loe modified plaque index (PI) were measured before and on days 15 and 30 after using the products.

The effect of Remin Pro on the microhardness of initial enamel lesions in primary teeth: An study.

Background: Remineralization is currently considered a treatment option for many clinicians. The present study was conducted to compare the effect of three remineralizing agents on microhardness of initial caries lesions in primary teeth.

Materials And Methods: In this study, 96 enamel samples were prepared.

Evaluation of retentive strength of four luting cements with stainless steel crowns in primary molars: An study.

Background: Stainless steel crown (SSC) is the most reliable restoration for primary teeth with extensive caries. Retention is of great importance for a successful restoration and is provided by various factors such as luting cements. The aim of this study was to evaluate the retentive strength of SSC cemented with four different luting cements.

Viability and Reproducibility of Periodontal Ligament Cells on Avulsed Teeth Stored in Ham's F-10 Solution.

Objectives: The purpose of the present study was to evaluate the efficacy of Ham's F-10 in maintaining the viability and reproducibility of PDL cells on avulsed teeth.

Study Design: Sixty mature, healthy extracted premolars were used. The experimental media used were Ham's F-10, Hank's balanced salt solution (HBSS), skim milk, and tap water (n = 15 specimens each).

Effect of a passive sonic irrigation system on elimination of from root canal systems of primary teeth, using different concentrations of sodium hypochlorite: An in vitro evaluation.

This in vitro study aimed to compare the antibacterial effect of different concentrations of sodium hypochlorite on elimination of from root canal systems of primary teeth with or without a passive sonic irrigation system (EndoActivator). The root canals of 120 extracted single-rooted primary incisors were prepared using the crown-down technique. The teeth were autoclaved and inoculated with .

The effects of three remineralizing agents on regression of white spot lesions in children: A two-week, single-blind, randomized clinical trial.

Background: This study investigated the effect of three remineralizing agents on improving white spot lesions (WSLs).

Material And Methods: This clinical trial included children who had at least one WSL on anterior teeth of upper or lower jaws. The participants were randomly assigned to 4 groups by treatment: 1) a cream containing casein phosphopeptide-amorphous calcium phosphate and fluoride (MI Paste Plus); 2) a cream containing hydroxyapatite and fluoride (Remin Pro); 3) a 2% sodium fluoride gel; and 4) usual home care (control).

Clinical evaluation of fiber-reinforced composite crowns in pulp-treated primary molars: 12-month results.

Objective: The aim of this study was to evaluate the clinical performance of tooth-colored fiber-reinforced composite (FRC) crowns in pulp-treated second primary mandibular teeth.

Materials And Methods: This split-mouth randomized, clinical trial performed on 67 children between 3 and 6 years with two primary mandibular second molars requiring pulp treatment. After pulp therapy, the teeth were randomly assigned to stainless steel crown (SSC) or FRC crown groups.

A Simplified Method for the Restoration of Severely Decayed Primary Incisors.

Objectives: Caries and dental trauma are common reasons for primary anterior teeth restorations in children. This non-control clinical trial was designed to evaluate crown restorations reinforced with a sectioned file post for the restoration of severely damaged primary maxillary incisors.

Materials And Methods: Thirty-eight primary maxillary incisors of 12 children (3-5 years old) with early childhood caries (ECC) received composite restorations with a custom made post.

Knowledge of Emergency Management of Traumatized Teeth among Schoolteachers in Mashhad, Iran.

Background and aims. Dental trauma is an important oral health problem in children that requires immediate and appropriate management for long term success. The aim of this study was to evaluate the knowledge of elementary school teachers about emergency management of traumatic dental injuries in children.

A review on vital pulp therapy in primary teeth.

Maintaining deciduous teeth in function until their natural exfoliation is absolutely necessary. Vital pulp therapy (VPT) is a way of saving deciduous teeth. The most important factors in success of VPT are the early diagnosis of pulp and periradicular status, preservation of the pulp vitality and proper vascularization of the pulp.

Treatment of severe rotations of maxillary central incisors with whip appliance: Report of three cases.

The routine treatment for rotated maxillary incisor is a fixed appliance, but in some instance the use of this method is impossible. In addition, in only limited cases of rotation, removable appliance is applicable. In this study, the use of a semi-removable appliance is presented, which has some benefits over the other methods.

New approaches in vital pulp therapy in permanent teeth.

Vitality of dental pulp is essential for long-term tooth survival. The aim of vital pulp therapy is to maintain healthy pulp tissue by eliminating bacteria from the dentin-pulp complex. There are several different treatment options for vital pulp therapy in extensively decayed or traumatized teeth.

Apexogenesis and revascularization treatment procedures for two traumatized immature permanent maxillary incisors: a case report.

Traumatic injuries to an immature permanent tooth may result in cessation of dentin deposition and root maturation. Endodontic treatment is often complicated in premature tooth with an uncertain prognosis. This article describes successful treatment of two traumatized maxillary central incisors with complicated crown fracture three months after trauma.

Management of a severely submerged primary molar: a case report.

Ankylosis is a condition frequently associated with primary molars, wherein the ankylosed primary teeth remain in a fixed position, while the adjacent teeth continue to erupt, moving occlusally. In this case report, a five-year-old boy, who had a retained and submerged left lower second primary molar, was presented. Luxation of ankylosed primary molar was considered as a treatment approach.

The parents' knowledge and behavior towards the effects of using iron supplements on tooth staining and dental caries in Mashhad, Iran.

Background: Iron deficiency is estimated to be the most common nutritional deficiency in both developed and underdeveloped nations. Iron supplements at early age may prevent iron deficiency. The aim of this study was to assess the knowledge and management of parents about using iron supplements related to dental caries and staining among Iranian children (6 months to 2 year-old) and to identify some factors underlying these attitudes.

Effect of casein phosphopeptide-amorphous calcium phosphate and acidulated phosphate fluoride gel on erosive enamel wear.

Background: Some studies have shown that casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and acidulated phosphate fluoride (APF) gel can protect teeth against erosion. The aim of this study was to assess whether CPP-ACP and fluoride could reduce enamel wear rates under erosive conditions simulating abrasion and acidic diet regimen.

Materials And Methods: Enamel specimens consisted of 3 experimental groups (receiving CPP-ACP, APF or both) and a control group.

Design and implementation of a hybrid genetic algorithm and artificial neural network system for predicting the sizes of unerupted canines and premolars.

The aim of this study was to develop a novel hybrid genetic algorithm and artificial neural network (GA-ANN) system for predicting the sizes of unerupted canines and premolars during the mixed dentition period. This study was performed on 106 untreated subjects (52 girls, 54 boys, aged 13-15 years). Data were obtained from dental cast measurements.

Comparison of electrosurgical pulpotomy with zinc oxide eugenol or zinc polycarboxylate cements sub-base.

Purpose: The aim of this study was to compare the clinical and radiographic success rates of electrosurgical pulpotomy of human primary molars with zinc oxide eugenol (ZOE) and zinc polycarboxylate (ZPC) cements.

Methods: In this randomized clinical trial study, 120 primary second molar teeth were treated by electrosurgical pulpotomy. Teeth were randomly assigned to two groups according to whether ZOE or ZPC cement was used as a sub-base.

Regression equations for predicting the size of unerupted canines and premolars in an Iranian population: a pilot study.

Aim: The aim of this pilot study was to evaluate equations for predicting the size of unerupted canines and premolars during the mixed dentition period in an Iranian population.

Methods And Materials: This cross-sectional analysis was performed on 106 subjects (52 girls, 54 boys, aged 13-15 years). Data were obtained from dental cast by making direct measurements of the maximum mesiodistal widths of all mandibular and maxillary incisors, canines, premolars, and first molars with an electronic digital sliding caliper, with an accuracy of ± 0.