Comparison of pulse oximeter, cold test, and electric pulp test for assessment of pulp vitality in permanent immature teeth.

Pulp sensitivity tests are commonly used for assessment of pulp vitality. However, indirect assessment of pulp vitality by evaluation of nerve response and subjective nature are the main limitations of these tests. Pulse oximetry is used for assessment of blood oxygen saturation in medicine, and its efficacy for assessment of pulp vitality needs to be evaluated.

Evaluation of laser fluorescence in combination with photosensitizers for detection of demineralized lesions.

Background And Objectives: Early detection of caries plays an important role in its prognosis. This study sought to assess the efficacy of laser fluorescence alone and in combination with photosensitizers for detection of demineralized smooth-surface lesions of permanent teeth.

Materials And Methods: This in vitro experimental study was conducted on 60 extracted sound premolars.

Oral Melatonin Versus Midazolam as Premedication for Intravenous Sedation in Pediatric Dental Patients.

Objectives: This study aimed to evaluate the effect of oral melatonin and oral midazolam as premedication for intravenous (IV) sedation of pediatric dental patients.

Materials And Methods: This crossover, double-blind randomized clinical trial was conducted on 23 uncooperative 2-6-year-olds with definitely negative behaviors according to the Frankl's scale. Each child served as their own control.

Comparison of nitrous oxide/midazolam and nitrous oxide/promethazine for pediatric dental sedation: A randomized, cross-over, clinical trial.

Background: This study compared the safety and efficacy of nitrous oxide (NO)/midazolam and NO/promethazine for dental treatment of uncooperative children.

Materials And Methods: In this randomized, cross-over, clinical trial investigation Eighteen healthy uncooperative children with a pair of similar teeth requiring the same treatment were included. Combination of NO/midazolam was given in one visit, where NO/promethazine was administrated in the other appointment for each patient in a cross-over manner.

Effects of antibacterial photodynamic therapy on salivary mutans streptococci in 5- to 6-year-olds with severe early childhood caries.

Antibacterial photodynamic therapy (A-PDT) has been shown to kill oral bacteria in the planktonic culture, dental plaque, and biofilm. This study sought to assess the antimicrobial effect of A-PDT with toluidine blue O (TBO) and diode laser on salivary mutans streptococci in 5-6-year-olds with severe early childhood caries (SECC). This case-control study was conducted on 56 children with SECC divided into four groups, namely 0.

The Effect of An Angiogenic Cytokine on Orthodontically Induced Inflammatory Root Resorption.

Objective: Orthodontically induced inflammatory root resorption (OIIRR) is an undesirable sequel of tooth movement after sterile necrosis that takes place in periodontal ligament due to blockage of blood vessels following exertion of orthodontic force. This study sought to assess the effect of an angiogenic cytokine on OIIRR in rat model.

Materials And Methods: In this experimental animal study, 50 rats were randomly divided into 5 groups of 10 each: E10, E100 and E1000 receiving an injection of 10, 100 and 1000 ng of basic fibroblast growth factor (bFGF), respectively, positive control group (CP) receiving an orthodontic appliance and injection of phosphate buffered saline (PBS) and the negative control group (CN) receiving only the anesthetic agent.

The use of pulse oximetry in evaluation of pulp vitality in immature permanent teeth.

Background And Aim: The current methods of pulp vitality assessment, either electric or thermal, are of limited use in children. Recently, traumatized and immature teeth may not respond to such methods and because such methods require subjective responses, it may not provide accurate results particularly in children. Pulse oximetry, an atraumatic approach, is used to measure oxygen saturation in vascular system.

Sedative Effect of Oral Midazolam/Hydroxyzine versus Chloral Hydrate/Hydroxyzine on 2-6 Year-Old Uncooperative Dental Patients: A Randomized Clinical Trial.

Objective: Different drugs are used for conscious sedation in pediatric dentistry either single or in combination. This study assessed the comparative effect of midazolam/hydroxyzine and chloral hydrate/hydroxyzine on 2-6 year-old uncooperative children needing dental treatment.

Materials And Methods: A double blind cross-over randomized clinical trial was designed and 16 children aged 2-6 years with ASA1 status who were judged with negative to definitely negative behavior (according to Frankl) were chosen.

Sequential supernumerary teeth development in a non-syndromic patient; report of a rare case.

Isolated impacted supernumerary teeth are quite rare, but they can be seen associated with several syndromes such as cleidocranial dysostosis or Gardner's syndrome. This article aims to discuss a case of sequential formation of supernumerary teeth with no other associated disease or syndrome. A 17-year-old Iranian male with 8 impacted supernumerary teeth was referred to the department of pediatric dental clinic at Shahid Beheshti Medical University in Tehran with a history of several impacted unerupted teeth.

Remineralization of artificial caries in primary teeth by grape seed extract: an in vitro study.

Background and aims. Promoting remineralization is the ultimate goal of clinical prevention of caries lesion. The present in vitro study aimed to investigate the effect of grape seed extract (GSE) on artificial enamel caries in primary human teeth.

Effect of zinc sulfate on human primary enamel microhardness: an in vitro study.

Objective: The aim of this study was to assess the effect of zinc sulfate on microhardness of human primary enamel.

Method: Sixteen sound primary molars were sectioned mesiodistally. For each sample one of the sections was randomly immersed in artificial saliva (Biotene, USA) and the other was immersed in artificial saliva which was charged with 10 mg/5 mL concentration of zinc sulfate supplement (Razak Company, Iran) daily.

Evaluation of the effect of photoactivated disinfection with Radachlorin(®) against Streptococcus mutans (an in vitro study).

Background: The use of photoactivated disinfection has had a significant medical and technological effect in bacterial inactivation, as an alternative to conventional antimicrobial methods. The main goal of this study was to investigate the effect of photoactivated disinfection on Streptococcus mutans, when Radachlorin(®) was used as a photosensitizer.

Methods: Streptococcus mutans samples of two different initial concentrations were treated with Radachlorin(®) gel (0.