The minimum thickness of a multilayer ceramic restoration required for masking dark background
Conclusion: A thickness of 1.5 mm of a multilayer ceramic restoration (IPS e.max Press) is requiredto mask a dark discoloration.Key Words: Color, masking, multilayer ceramic, spectrophotometer, tooth discoloration (Source: Dental Research Journal)
Source: Dental Research Journal - April 11, 2022 Category: Dentistry Source Type: research

Comparative evaluation of microRNA ‑155 expression level and its correlation with tumor necrotizing factor α and interleukin 6 in patients with chronic periodontitis
Conclusion: As the expression level of miR ‑155, TNF‑α, and IL‑6 genes was higher in subjectswith chronic periodontitis than healthy individuals, it might suggest a role for miR ‑155 in patientswith chronic periodontitis.Key Words: Interleukin ‑6, microRNAs, microRNA‑155, periodontitis, tumor necrosisfactor ‑alpha (Source: Dental Research Journal)
Source: Dental Research Journal - April 11, 2022 Category: Dentistry Source Type: research

Evaluating systemic administration effect of propranolol on osseointegration around titanium implants: A histomorphometric study in dogs
Conclusion: Administration of systemic β‑blockers can improve dental implants osseointegrationprocess.Key Words: Beta antagonists, dental implants, osseointegration (Source: Dental Research Journal)
Source: Dental Research Journal - April 11, 2022 Category: Dentistry Source Type: research

Anti ‑adherence and anti‑bacterial activities of Pistacia atlantica resin extract against strongly adherent Streptococcus mutans strains
Conclusion: The results showed an anti ‑cariogenic effect of EO extracted from P. Atlantica resin.Considering that S. mutans adhesion is a necessary step in the beginning and progression of dentalcaries, this study can suggest the use of such extract in mouthwashes or toothpaste as an alternativeagent for preventing bacterial attachment and biofilm formation.Key Words: Adherence, anti ‑bacterial agent, cariogenic, pistacia, Streptococcus mutans (Source: Dental Research Journal)
Source: Dental Research Journal - April 11, 2022 Category: Dentistry Source Type: research

Spectrophotometric comparison of two porcelain systems, VMK master and VM13 with the VITA 3D ‑master shade guide (An in vitro study)
Conclusion: In the present study, the spectrophotometric analysis revealed that the porcelain shadetype causes a change in the color parameters, but the color difference between two porcelainsVMK and VM13 is within the acceptable range of clinical color. Therefore, both porcelain systemswith 2M2 and 3M2 shades are suitable for enhancing the results of restorative dentistry.Key Words: Dental porcelain, shade matching, spectrophotometer, VMK master porcelain,VITA VM13 porcelain (Source: Dental Research Journal)
Source: Dental Research Journal - April 11, 2022 Category: Dentistry Source Type: research

Retention of dental practitioners in rural health services in Iran: Experiences from Kerman province
Conclusion: More than half of the dental practitioners declared their willingness to stay in rural areas, although, in practice, this amount of presence in rural areas does not meet the needs of residents. Financial issues, amenities, and facilities in the rural areas can have a positive impact on the retention of dental practitioners.Key Words: Dental health services, health personnel, Iran, retention in care, rural health services (Source: Dental Research Journal)
Source: Dental Research Journal - April 11, 2022 Category: Dentistry Source Type: research

Microinvasive esthetic approach for deep enamel white spot lesion
The white spot lesion on the dental enamel is an optical alteration that compromises the estheticsof smile. It can be caused by many factors, among them, defects in mineralization and formationof tooth enamel. Resin infiltrants are agents that penetrate, by capillarity, through the pores of thedemineralized or hypomineralized enamel, altering the refractive index (RI) of the tooth structureand totally or partially masking the appearance of the white spot. The aim of this work was toreport the use of resin infiltration to minimize the visualization of white spot lesion, present inan upper central incisor, as a microinvasive...
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

Reinforcing an immature tooth model using three different restorative materials
Conclusion: The results indicate that FRC could substantially contribute positively in reinforcingthe simulated thin ‑walled immature roots.Key Words: Biodentine, glass ionomer cement, reinforced composite (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

Clinical, radiological, and histological correlation in diagnosis of pulpitis
Conclusion: Some discrepancies between clinical, radiographic and histological findings wereobserved in our experimental study. Indeed, effective clinical practice requires consideration of alldiscrepancies found.Key Words: Diagnosis, histology, pulpitis, root canal therapy, signs and symptoms (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

Oral health knowledge, attitude, and performance of the parents of 3 –12‑year‑old autistic children
Conclusion: The oral health knowledge, attitude, and performance of the parents of autistic childrenin Isfahan city were lower than expected, which calls for knowledge enhancement strategies inthis respect.Key Words: Attitude, autism, knowledge, oral health, parents, performance (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

In vitro antimicrobial effects of green tea, microwaving, cold boiled water, and chlorhexidine on Streptococcus mutans and Candida albicans on silicone pacifiers
Conclusion: CHX and green tea can significantly decrease the S. mutans and C. albicans colonycount on silicone pacifiers.Key Words: Candida albicans, chlorhexidine, microwaves, pacifiers, Streptococcus mutans (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

Evaluation of bone density by cone ‑beam computed tomography and its relationship with primary stability of dental implants
Conclusion: The voxel value and primary stability had a normal distribution and strong correlation.In other words, the gray scale determined by CBCT imaging techniques at the proposed implantsite could be used to assess the bone density before the surgery.Key Words: Cone ‑beam computed tomography, dental implant, implant stability, resonancefrequency analysis (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

Influence of maternal periodontitis on adverse pregnancy outcome: An observational study
Conclusion: Periodontitis is related to PTLBW in pregnant women of the studied population.Maternal oral hygiene status delivering PTLBW babies are compromised compared to mothersdelivering NTNBW babies. Hence, periodontitis during pregnancy phase is an important healthconcern for the growing fetus.Key Words: Low birth weight, Parvimonas micra, periodontitis, premature birth, Veillonella (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

Effect of surface treatment with laser on repair bond strength of composite resin to ceramic
Conclusion: The repair SBS was higher in groups treated with HF acid compared to laser. Ceramicsurface treatment with HF plus silane plus conventional adhesive yielded a higher SBS as well asHF plus Universal adhesive. Thus, the application of silane as a separate step can be omitted in therepair of ceramic restorations with universal adhesives.Key Words: Bond strength, ceramic, laser, resin composite (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research

The effect of different mouth washes on metallic ions release from silver ‑soldered and laser‑welded orthodontic attachments. A comparative in vitro study
Conclusion: Laser welding should be preferred over silver soldering for the construction oforthodontic appliances. CHX containing mouthwashes such as Hexidine can be prescribed for thepatients undergoing orthodontic treatment. More in vivo experiments will determine whether thelevels of dissolved nickel ions can reach the toxic or sub ‑toxic concentrations or not.Key Words: Corrosion, Ion release, Laser welding, Orthodontic attachments, Silver soldering (Source: Dental Research Journal)
Source: Dental Research Journal - March 16, 2022 Category: Dentistry Source Type: research