Pt. Deendayal Upadhyay Memorial Health Sciences and Ayush University of Chhattisgarh, formerly Pt. Deendayal Upadhyay Memorial University, is a state university located in Raipur, Chhattisgarh, India. It was established under the Ayush And Health Science University Of Chhattisgarh. Act with establishment date of 16 September 2008.
Fracture of endodontically treated premolars remains a major restorative challenge, necessitating durable endocrown restorations. Therefore, it is of interest to evaluate the fracture resistance and failure modes of lithium disilicate and CAD/CAM zirconia endocrowns with and without a ferrule. Thirty-two endodontically treated maxillary first premolars were allocated to four groups, restored using a standardized digital workflow and loaded to failure in a universal testing machine. Lithium disilicate with ferrule showed the highest fracture resistance (1343.50 ± 189.47 N), whereas zirconia without ferrule showed the lowest (654.60 ± 85.01 N), with significant intergroup differences (p = 0.001). Thus, data shows the ferrule preparation significantly improved fracture resistance and lithium disilicate endocrowns showed superior biomechanical performance compared with CAD/CAM zirconia.
Endodontic retreatment aims to remove root canal filling material and facilitate effective canal re-cleaning and disinfection. Therefore, it is of interest to compare the manual Hedstrom files with four rotary retreatment systems in 75 extracted single-rooted teeth. Rotary systems significantly reduced procedural time, with the HyFlex™ retreatment system demonstrating the fastest gutta-percha removal. HyFlex™ also left the least residual debris, while Hedstrom files showed the highest debris, particularly in the apical third. Thus, rotary retreatment systems, especially HyFlex™, provide superior efficiency and cleaning ability, although additional measures may be required for complete canal cleanliness.
Pit and fissure sealants clinical success depends on wear resistance and surface smoothness, yet optimal filler content balancing these properties remains unclear. Therefore, it is of interest to compare the unfilled (Clinpro), moderately filled (Helioseal F Plus, ~25% wt) and highly filled (Fissurit FX, ~55% wt) sealants using 24 disc samples (n=8/group) fabricated via STL printing and silicone molds. Wear resistance increased with filler content (Fissurit FX > Helioseal F Plus > Clinpro), while surface roughness showed inverse relationship (Clinpro smoothest, Fissurit FX roughest). Helioseal F Plus showed optimal balance with moderate roughness and improved wear resistance compared to extremes. Thus, data shows that filled sealants as a superior clinical compromise between durability and smoothness for long-term caries prevention.
Abstract Introduction: Pain and anxiety are major barriers to successful paediatric dental care. Conventional local anaesthesia (LA) alone often fails to adequately control pain or reduce fear during dental extractions in children. Adjunctive approaches such as nitrous oxide/oxygen (N 2 O/O 2 ) sedation, computer-controlled local anaesthetic delivery (CCLAD) and pre-emptive analgesia with ibuprofen have shown potential individually but have rarely been compared directly. Materials and Methods: This single-blind randomised controlled trial randomised 150 healthy children (ages 6–10) into three groups: conventional LA (control), sedation or CCLAD with pre-operative ibuprofen. Researchers assessed intraoperative and post-operative pain using the Wong–Baker FACES Pain Rating Scale while evaluating procedural behaviour (Frankl Scale) and parental satisfaction (Likert Scale) following mandibular molar extractions. Results: Both the intervention groups showed significantly lower intraoperative pain than the control ( P < 0.001). Mean injection pain scores were 5.1 ± 1.8 (Group A), 2.2 ± 0.9 (Group B) and 2.5 ± 1.1 (Group C). Group B demonstrated the most favourable behaviour (88% ‘definitely positive’), while Group C had the lowest post-operative pain scores at 2 h (1.7 ± 0.7) and 6 h (1.9 ± 0.8) and the least rescue analgesic use (12%). Parental satisfaction was significantly higher in Groups B and C ( P < 0.001). Conclusion: Both N 2 O/O 2 inhalation sedation and CCLAD with pre-operative ibuprofen significantly enhanced pain control and behavioural outcomes compared to conventional LA. N 2 O/O 2 provided optimal intraoperative comfort through anxiety reduction, while CCLAD with ibuprofen offered superior post-operative pain relief.
Abstract Introduction: The oral cavity is home to several species of Candida , the most prevalent of which is Candida albicans . However, their role as potential co-pathogens in multifactorial diseases such as dental caries and gingivitis remains an area of active investigation. The synergistic interactions between Candida and cariogenic bacteria, as well as their pro-inflammatory potential, suggest a more significant contribution to oral diseases than previously understood. Materials and Methods: This cross-sectional study involved healthy adults aged 20–50 years. Researchers clinically evaluated dental caries (Decayed, Missing and Filled Teeth [DMFT] Index) and gingival health (Gingival Index [GI]). They also collected unstimulated saliva to quantify Candida colonies (CFU/mL) on Sabouraud dextrose agar, dividing participants into Candida -positive and Candida -negative groups. The study used t -tests and Pearson correlation to statistically analyse the relationship between the presence of Candida and oral health status, with a significance level of P < 0.05. Results: Nearly half (48.5%) of subjects carried oral Candida . This Candida -positive group had significantly worse dental caries (DMFT) and gingivitis (GI) scores compared to the negative group ( P < 0.001). Furthermore, Candida colony counts showed a moderate positive correlation with the severity of both conditions. Conclusion: Carrying Candida in the mouth is common in adults and is linked to more severe gingival irritation and a heavier load of dental caries. According to these results, Candida might be a major contributor to the development of these prevalent oral disorders and a major risk signal for them.
