Publications by authors named "M L Cuellar"
Are ultrasonic tips associated with final irrigation protocols effective in removing biofilms in long oval canals and dentinal tubules?
Clin Oral Investig
January 2025
Objective: This study investigated the associations among endodontic instruments, ultrasonic tips and various final irrigation protocols for removing intracanal and intratubular biofilms in long oval canals.
Methodology: One hundred mandibular premolars inoculated with Enterococcus faecalis were divided into two groups: the control group (CG: n = 10), which received no treatment; and the test groups (n = 30), which included saline (SS), sodium hypochlorite (2.5% NaOCl) and chlorhexidine (2% CHX).
Forensic toolmark analysis traditionally relies on subjective human judgment, leading to inconsistencies and lack of transparency. The multitude of variables, including angles and directions of mark generation, further complicates comparisons. To address this, we first generate a dataset of 3D toolmarks from various angles and directions using consecutively manufactured slotted screwdrivers.
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- The study looks at how the environment and our genes can affect health, especially in young kids.
- Researchers studied 416 Colombian children under 5 years old to see how different factors, like pollution and diet, impact DNA damage.
- They found that some things, like being exposed to air pollution and living in crowded places, can increase DNA damage, while others, like drinking soft drinks, might actually help reduce it.
Article Synopsis
- This study examined different irrigation techniques to see how they affect the amount of bacteria expelled during root canal procedures using Reciproc files.
- Researchers used conventional syringe irrigation and passive ultrasonic irrigation (PUI) with varying activation cycles on 70 contaminated human premolars, organizing them into six experimental groups.
- Results showed that using the smaller Reciproc file (25/0.08) led to more bacterial extrusion, especially when PUI was applied, while the larger file (40/0.06) resulted in less extrusion overall.