Clinical Oral Investigations (2020Abstract
To compare the clinical behavior of a universal light-curing, ultra-fine particle hybrid composite and successor of this material in class I and II cavities after 60 months.
Materials and methods
Forty patients (21 females, 19 males) with ages ranging between 18 and 38 years (23.15 ± 5.15) received 80 (13 Cl I and 67 Cl II) resin composite restorations (Charisma/Charisma Classic, Kulzer GmbH) in combination with an etch and rinse adhesive system (Gluma 2Bond) under rubber dam isolation. Two experienced operators performed all the restorations. Restorations were evaluated by the other two examiners according to the FDI criteria at baseline and at 6, 12, 18, 24, 36, 48 and 60 months. Surface characteristics of one restoration selected randomly were examined under a scanning electron microscope (SEM) at each recall. Data were analyzed statistically (p < 0.05).
After 60 months, recall rate was 90%. None of the restorations failed. Three restorations from Charisma and 4 from the Charisma Classic group showed minor surface staining. Twelve Charisma and 14 Charisma Classic restorations were scored as 2 for margin staining. Four restorations from both groups showed minor shade deviations but no significant difference was observed between the two restorative materials for any criteria evaluated after 60 months (p > 0.05). SEM evaluations were in accordance with the clinical findings.
Both materials exhibited clinically similar and successful performance over the 60-month observation period.
A new formulation of resin composite may not always perform better clinical performances.
Nagaraja S, Mathew S, Jain N, Jethani B, Nambiar S, Kumari M, Nair S. Study of antibacterial and antifungal efficacy of platelet-rich fibrin and platelet-rich fibrin matrix. J Conserv Dent [serial online] 2019 [cited 2020 Aug 5];22:415-9. Available from: http://www.jcd.org.in/text.asp?2019/22/5/415/291315
Background: Platelet concentrates are extensively utilized in the medical and dental field to promote tissue regeneration. The profusion of endogenous growth factors in platelets α-granules transmit their use for enhanced wound healing. However, little attention has been given to study their antimicrobial potential. This study was conducted to assess the antibacterial and antifungal property of platelet-rich fibrin (PRF) and PRF matrix (PRFM).
Materials and Methodology: Blood samples were obtained from 16 participants, PRF and PRFM were processed as per the protocol prescribed by Choukroun et al. and Lucarelli et al., respectively. The susceptibility test against microbiota in the root canal and Candida albicans was assessed through minimum inhibition zone by agar diffusion technique.
Results: PRF showed an effective antibacterial property, however, did not perform well against C. albicans strains. PRFM did not show any antibacterial or antifungal properties.
Conclusions: The antibacterial efficacy of PRF may prove beneficial when used in the revascularization procedure of immature necrotic teeth.
SINGH, Vishwendra; LEHL, Gurvanit. Child abuse and the role of a dentist in its identification, prevention and protection: A literature review. Dental Research Journal, [S.l.], v. 17, n. 3, jul. 2020. ISSN 2008-0255. Available at: <http://drj.mui.ac.ir/index.php/drj/article/view/2111>. Date accessed: 09 Jul. 2020.
Child abuse, a reprehensible act, pervades all strata of society. Dentists are more likely to encounter
such cases in their daily practice. However, such cases usually go unreported due to lack of adequate
knowledge. Practitioners flinch from reporting these due to various reasons, and this sets up a vicious
cycle which traps the victim leading to grave long‑term consequences. This review aims to collect
all literature available on PubMed, PubMed Central, MEDLINE, Google Scholar, and Google search
engines on the role of dentists in child abuse identification and information and summarize these
details. The review will shed light on the identification of abuse in dental settings, the various legal
recourses and organizations related to it, and how dentists can better equip themselves to tackle
such cases if they come across one. The review also makes certain recommendations by which
dentists and healthcare providers in general can better prepare themselves for such contingencies.