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Hamdan Bin Mohammed College of Dental Medicine (HBMCDM)

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Browsing Hamdan Bin Mohammed College of Dental Medicine (HBMCDM) by Author "Abdunabi, Farida"

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    Alveolar ridge preservation in extraction sockets of periodontally compromised teeth: A systematic review and meta-analysis.
    (2022-07) Atieh, Momen; Alnaqbi, Maitha; Abdunabi, Farida
    Objectives: Alveolar ridge preservation (ARP) procedures can limit bone changes following tooth extraction. However, the role of ARP in periodontally compromised socket lacks strong scientific evidence. The aim of this systematic review and meta analysis was to evaluate the outcomes of ARP following extraction of periodontally compromised teeth in comparison with extraction alone in terms of hard tissue changes, need for additional augmentation at the time of implant placement, and patient-reported outcomes. Material and Methods: Electronic databases were searched to identify randomized controlled trials (RCTs) that compared ARP in periodontally compromised sockets with spontaneous socket healing. The risk of bias was assessed using the Cochrane Collaboration's risk of bias tool. Results: Five studies with 134 extraction sockets in 126 participants were included. Of these, ARP was performed in 77 sites, while the remaining sites were intentionally left to heal without any ARP treatment. The follow-up time varied between 6 and 12 months. Overall meta-analysis showed significant differences in changes in ridge height (mean difference (MD) −0.95; 95% confidence interval (CI) −1.43 to −0.47; p = .0001) and bone volume (MD −38.70; 95% CI −52.17 to −25.24; P<.0001) in favor of ARP. The use of ARP following extraction of periodontally compromised tooth was also associated with significantly less need for additional bone grafting at the time of implant placement. Conclusions: Within the limitation of this review, ARP following extraction of periodontally compromised teeth may have short-term positive effects on alveolar ridge height and bone volume and minimize the need for additional augmentation procedures. However, the evidence is of very low to low certainty.
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    Comparing the softening effect of three gutta-percha solvents on different types of gutta-percha with different application durations.
    (2023) Atmeh, Amre R; Abdunabi, Farida; Khamis, Amar Hassan
    Introduction: During non-surgical endodontic retreatment, gutta-percha (GP) solvents are indispensable in difficult cases when used with mechanical removal, however studies comparing their efficacy against different types of GP are limited. The purpose of this study was to investigate the softening effect of three solvents on the conventional (CGP), cross-linked carrier-based (CLGP), and thermoplasticized (TGP) and compare the effect of time on the softening effect of the solvents. Methods: Tested GP were embedded in cuboidal blocks of stone with their upper surfaces exposed (1 mm diameter). Three commercial GP solvents based on D-Limonene (DL), Eucalyptol oil (EO), and orange oil (OO) were added to the exposed GP before an indenter (weight = 1Kg) was applied. Using a digital camera, the indentation depth was measured (mm) directly after applying the solvent and indenter (T = 0), and after 1, 2, and 3 min of application (T = 1,2,3). The means of indentation depth were calculated and compared using a twoway analysis of variance and Tukey’s post-hoc test to assess the effect of the types of solvent, GP for each application duration, and Friedman’s test to evaluate the effect of application duration on the softening effect of solvents. Results: The type of GP (F = 261.43, p < 0.001), type of solvent (F = 3.57, p = 0.015), and application duration (F = 53.088, p < 0.001) were all found to significantly affect GP softening. DL exhibited the highest and only significant effect on CGP after 1 min (p < 0.05), while OO had the only significant effect against CLGP when applied for at least 2 min (p < 0.05). Both OO and EO had significant softening effects on TGP instantly or after 1 min of application, respectively. Conclusions: The results of this study revealed that the softening effect of GP solvents varies depending on their type, their application duration, and the type of GP.