Online ISSN: 2515-8260

Keywords : Marginal Leakage

Analysis of Sealing Ability of Two Retrograde Filling Materials Using Dye Penetration Method: An Institutional Based Study

Renu Aggarwal, Rajnish Aggarwal, Anisha Aggarwal

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 3, Pages 5238-5243

Introduction: The primary objective of any root end filling material is to seal the apical
region to avoid any kinds of bacterial infiltration or their by-products from the
supporting periodontal structures into the root canal system.
Materials and Methodology: For the study purpose, sixty mandibular premolars were
selected which were extracted for orthodontic reasons. The root surfaces were sought to
be cleaned and the soft tissue remnants present as debris were removed help of
Ultrasonic scaler and teeth were stored in distilled water until further use. The
materials that were intended to be studied in this research were manipulated as per the
manufacturer’s instructions and the cavities were filled respectively. The specimens
were then coated with 2 coats of nail varnish except at the 1 mm apical area & then they
were allowed to be dried.
Results: Group A: Since it is a control group, no material was placed. All
stereomicroscopic images for the control group demonstrated a relative amount of dye
penetration. Both Group B and C showed microleakage, where Giomer and Biodentine
showed microleakage but the difference was not statistically significant. Biodentine is
considered as better root-end materials since it showed lesser microleakage than
Conclusion: Both the root-end filling materials such as Giomer and Biodentine revealed
the presence of microleakage but the results were not observed to be statistically
significant. Comparatively Biodentine possessed lesser microleakage than Giomer and it
is considered to be better. Therefore, it can be effectively used as a retrograde filling
material with better results.

Evaluating the Influence of Irrigants on Coronal Microleakage of Various Adhesive Restorative Materials Using Polymicrobial Marker: A Prospective Study

Renu Aggarwal, Rajnish Aggarwal, Anisha Aggarwal

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 3, Pages 5244-5249

Introduction: Failure in achieving the coronal marginal integrity could possibly
questions the prognosis of the endodontically treated teeth. The success and the aim of
an endodontic therapy tends to reduce infection in the root canal system and to
eliminate reinfection from the apical and coronal region.
Materials and Methodology: A total of 80 freshly extracted, intact human mandibular
premolars were selected and being used for this study. 40 samples were irrigated with 2
mL of 3% sodium hypochlorite and 17% EDTA, finally rinsed with saline. For another
40 samples irrigation regimen was 2 ml of 3% sodium hypochlorite and tublicid plus,
finally rinsed with saline. Coronal section of 4 mm length was used in this study which
was further obtained by sectioning tooth horizontally with diamond disk. All the
samples were prepared so that they have a through and through channel and were
coated superficially with three layers of nail varnish and were then autoclaved. Each
group comprising of 40 samples were again sub grouped into two such that each has 20
teeth (n=20) and restored with nanocomposite and nano glass ionomer cement based on
the manufacturer protocols.
Results: Sample was irrigated with EDTA and further restored with nanocomposite
demonstrated maximum leakage with mean number of days at which leakage occurred
was 55.82 and least microleakage was seen with samples that were irrigated with
tublicid plus and restored with nanocomposite with mean number of days at which
leakage observed was at 71.32.
Conclusion: To conclude that no material could possibly replace lost tooth structure.
Either the irrigants or the restorative materials may not effectively prevent
microleakage. Therefore, from this study, definitive treatment like crown placement
should be done without any delay in order to achieve a good prognosis of the endodontic
treatment. Failing to do so could result in a fatal prognosis and outcome of the
endodontically treated teeth.

Marginal Integrity Around Bonded Fixed Prosthesis After Instrumentation With SubgingivalScalers And Curettage - A Review

V. Mathivadani; Venkatesh Kommi; Lakshminarayanan Arivarasu; L. Keerthi sasanka

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 1, Pages 3175-3181

Marginal adaptation is a critical property of treatment . These summaries marginal fit in the light potential disrupting factors And underlying mechanisms in provisional fixed prosthesis treatment. Marginal gap at tooth restoration and should be sealed properly . Microbial leakage is the most important factor influencing long term success of restoration and causing interfacial contamination of bacteria through ingress of oral fluids.Complications of marginal integrity can cause micro/nano size gaps resulting in plaque accumulation, sensitivity, and secondary caries.marginal integrity remains an important predictive tool for clinical outcome at restoration margins. ultrasonic instrumentation for root debridement, on changes in periodontal clinical parameters.Microleakage is a cause of restorative treatment failure and allows the passage of bacteria, oral fluids, molecules from the restoration and cavity walls. The vibration of scaler tips is the main effect to remove the deposits from the dental surface and there will be a constant flushing activity of the lavage used to cool the tips and cavitational activity which cause disruption of the weak and unattached subgingival plaque.