Browsing by Author "Meistere, Dita"

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    Comparative Analysis of Examination Methods for Periapical Lesion Diagnostics : Assessing Cone-Beam Computer Tomography, Ultrasound, and Periapical Radiography
    (2024-04) Kārkle, Aleksandra; Slaidiņa, Anda; Zolovs, Maksims; Vaškevica, Anete; Meistere, Dita; Bokvalde, Zanda; Neimane, Laura; Department of Conservative Dentistry and Oral Health; Department of Prosthetic Dentistry; Statistics Unit
    Introduction: Periapical lesions of teeth are typically evaluated using periapical X-rays (PA) or cone-beam computer tomography (CBCT); however, ultrasound imaging (US) can also be used to detect bone defects. A comparative analysis is necessary to establish the diagnostic accuracy of US for the detection of periapical lesions in comparison with PA and CBCT. Objectives: This study aimed to evaluate and compare the measurement precision of US against PA and CBCT in detecting periapical lesions. Methods: This study included 43 maxillary and mandibular teeth with periapical lesions. All teeth were examined clinically, radiographically, and ultrasonographically. Observers evaluated and measured the periapical lesions on CBCT, PA, and US images. Results: The comparison of lesion size showed that it differs significantly between the different methods of examination. A statistically significant difference was found between CBCT and US (mean difference = 0.99 mm, 95% CI [0.43–1.55]), as well as between CBCT and PA (mean difference = 0.61 mm, 95% CI [0.17–1.05]). No difference was found between the US and PA methods (p = 0.193). Conclusion: US cannot replace PA radiography in detecting pathologies but it can accurately measure and characterize periapical lesions with minimal radiation exposure. CBCT is the most precise and radiation-intensive method so it should only be used for complex cases.
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    Impact of Advanced Platelet-Rich Fibrin on Early Bone Healing After Endodontic Microsurgery : A Randomized Controlled Trial
    (2025-02-20) Kārkle, Aleksandra; Neimane, Laura; Zolovs, Maksims; Dambergs, Matīss; Meistere, Dita; Vaškevica, Anete; Slaidiņa, Anda; Department of Conservative Dentistry and Oral Health; Statistics Unit; Department of Prosthetic Dentistry
    Background: Apical surgery can address periapical pathologies when conventional endodontic treatments fail. Advanced platelet-rich fibrin (A-PRF) has emerged as a regenerative material with the potential to enhance healing in periapical surgery. In this study, we evaluated the effect of A-PRF on periapical lesion healing using cone beam computed tomography (CBCT). Methods: A randomized controlled trial at Rīga Stradiņš University Institute of Stomatology included 43 participants (15 males, 28 females; mean age: 44 years) with periradicular lesions. Participants were divided into experimental and control groups. Baseline and follow-up CBCT imaging assessed lesion volumes at 6 and 12 months post-surgery. Results: Mean lesion volumes significantly decreased from 431.4 mm3 at baseline to 102.8 mm3 at 6 months and 49.2 mm3 at 12 months (p < 0.001). A-PRF did not significantly reduce the lesion sizes compared to the controls (p = 0.043), but was associated with reduced inflammation and enhanced soft tissue healing. Key confounders included gender and baseline lesion volume, with males exhibiting smaller lesion sizes postoperatively. Conclusions: The results suggest that A-PRF may not offer a significant advantage in terms of reducing defect size or improving radiographic resolution.
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    Non-syndromic tooth agenesis in Latvian adolescent dental patients : a retrospective study with relevant literature review
    (2024-06) Meistere, Dita; Kroniņa, Līga; Kārkle, Aleksandra; Neimane, Laura; Department of Conservative Dentistry and Oral Health
    Aim: To investigate the prevalence of tooth agenesis and associated dental anomalies in Latvian adolescent dental patients and compare it to other European countries. Design: Cross-sectional study of 2692 11-to-14-year-old patients (39.9% males and 60.1% females) attending Riga Stradins University Institute of Stomatology with panoramic radiographs taken between August 2020 and September 2021. Patients with any genetic syndromes were excluded. Data on tooth agenesis (excluding third molars) and other dental anomalies were recorded. Results: The prevalence of tooth agenesis in Latvian adolescent dental patients was 9.3% with no statistically significant difference between genders (χ 2 test, p = 0.472). The most commonly missing teeth were mandibular second premolars, followed by upper lateral incisors and upper second premolars. There was a statistically significant association with the presence of other dental anomalies in tooth agenesis patients (p < 0.001). Conclusions: This study found that the prevalence of non-syndromic tooth agenesis in Latvian adolescent dental patients was 9.3% with no statistically significant differences between the genders. Patients with tooth agenesis have a statistically significant possibility of the presence of other dental anomalies (p < 0.001).