Dental Calculus — Evaluation of Root Roughness and Smear Layer Formation Using Conventional and Contemporary Dental Curettes
Citation(s)
Aspriello SD, Piemontese M, Levrini L, Sauro S Ultramorphology of the root surface subsequent to hand-ultrasonic simultaneous instrumentation during non-surgical periodontal treatments: an in vitro study. J Appl Oral Sci. 2011 Jan-Feb;19(1):74-81.
Dahiya P, Kamal R, Gupta R, Pandit N Comparative evaluation of hand and power-driven instruments on root surface characteristics: A scanning electron microscopy study. Contemp Clin Dent. 2011 Apr;2(2):79-83. doi: 10.4103/0976-237X.83065.
Mittal A, Nichani AS, Venugopal R, Rajani V The effect of various ultrasonic and hand instruments on the root surfaces of human single rooted teeth: A Planimetric and Profilometric study. J Indian Soc Periodontol. 2014 Nov-Dec;18(6):710-7. doi: 10.4103/0972-124X.147405.
Schwarz F, Aoki A, Sculean A, Georg T, Scherbaum W, Becker J In vivo effects of an Er:YAG laser, an ultrasonic system and scaling and root planing on the biocompatibility of periodontally diseased root surfaces in cultures of human PDL fibroblasts. Lasers Surg Med. 2003;33(2):140-7.
Slot DE, Koster TJ, Paraskevas S, Van der Weijden GA The effect of the Vector scaler system on human teeth: a systematic review. Int J Dent Hyg. 2008 Aug;6(3):154-65. doi: 10.1111/j.1601-5037.2008.00319.x. Review.
Yaghini J, Naghsh N, Attaei E, Birang R, Birang E Root Surface Roughness After Scaling and Root Planing with Er:YAG Laser Compared to Hand and Ultrasonic Instruments by Profilometry. J Dent (Tehran). 2015 Dec;12(12):899-905.
Evaluation of Root Roughness and Smear Layer Formation Using Conventional and Contemporary Dental Curettes
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
