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Ultrasonic System (ultrasonic + system)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

The effect of the Vector® scaler system on human teeth: a systematic review

INTERNATIONAL JOURNAL OF DENTAL HYGIENE, Issue 3 2008
DE Slot
Abstract:, Aim:, To review the available literature, considering the effect of instrumentation with the Vector® ultrasonic scaler on human teeth in vitro and in vivo compared to conventional ultrasonic instruments and/or hand instrumentation. The assessed effects are calculus removal, time of instrumentation, root surface aspects, cell attachment, patients' perception, bleeding upon probing, pocket depth, clinical attachment loss and microbiological effects. Materials and methods:, MEDLINE,PubMed and the Cochrane Central register of controlled trials (CENTRAL) were searched up through January 2008 to identify appropriate studies. Results:, Independent screening of the titles and abstracts of 270 MEDLINE,PubMed and 15 Cochrane papers resulted in 15 suitable publications. The studies differed in design and outcome, so this review summarizes the outcomes in a descriptive manner. Comparisons are presented against conventional ultrasonic system and scaling and root planing. Conclusion:, The Vector® ultrasonic scaler provided comparable clinical and microbiological periodontal healing results as scaling and root planing and conventional ultrasonic system in moderately deep pockets. The Vector® ultrasonic scaler may be used as a gentle root debridement device for supportive periodontal therapy, as an alternative to other conventional ultrasonic system. The operator should however consider the extra time needed for instrumentation. [source]

Significant influence of scaler tip design on root substance loss resulting from ultrasonic scaling: a laserprofilometric in vitro study

JOURNAL OF CLINICAL PERIODONTOLOGY, Issue 11 2004
Søren Jepsen
Abstract Objectives: Ultrasonic scalers have become increasingly popular for subgingival debridement. The aim of the present study was to investigate the influence of different working tip designs (narrow versus wide) on root substance loss caused by either magnetostrictive or piezoelectric ultrasonic devices. Methods: In this in vitro study, a magnetostrictive ultrasonic system with either Slimline or TFI-10 inserts and a piezoelectric ultrasonic system with either Perioprobe or Type-A inserts were compared at different application forces. Loss of root dentin was determined by defect width, defect depth and defect volume resulting from standardized instrumentation using laser profilometry. Results: There were consistent and statistically significant differences between all groups. The mean observed dentin alterations for the magnetostrictive ultrasonic device operating a Slimline insert at a lateral force of 0.3 N were 254.4 ,m, 6.3 ,m and 22.5 ,m3 and for the TFI-10 tip 759.0 ,m, 23.5 ,m and 160.2 ,m3 for the parameters defect width, depth and volume, respectively. For the piezoelectric ultrasonic system operating a Perioprobe insert, the corresponding mean values were 352.0 ,m/12.1 ,m/56.4 ,m3 and for the universal Type-A insert they were 402.4 ,m/14.0 ,m/133.4 ,m3. With application forces of 0.7 N, root substance removal increased up to twofold. Conclusion: The present investigation could demonstrate that the aggressiveness of magnetostrictive and piezoelectric ultrasonic devices to root substance was significantly influenced by the scaler tip designs, increasing for wider scaler tips as compared with narrow, probe-shaped inserts. [source]

Non-surgical periodontal treatment with a new ultrasonic device (VectorÔ-ultrasonic system) or hand instruments

JOURNAL OF CLINICAL PERIODONTOLOGY, Issue 6 2004
A prospective, controlled clinical study
Abstract Objectives: The aim of this prospective, randomized, controlled clinical study was to compare the effectiveness of a newly developed ultrasonic device to that of scaling and root planing for non-surgical periodontal treatment. Material and Methods: Thirty-eight patients with moderate to advanced chronic periodontal disease were treated according to an "one-stage procedure" with either a newly developed ultrasonic device (VUS) (VectorÔ-ultrasonic system) or scaling and root planing (SRP) using hand instruments. Clinical assessments by plaque index (PlI), gingival index (GI), bleeding on probing (BOP), probing depth (PD), gingival recession (GR), and clinical attachment level (CAL) were made prior to and at 6 months after treatment. Differences in clinical parameters were analyzed using the Wilcoxon signed ranks test and Mann and Whitney U -test. Results: No differences in any of the investigated parameters were observed at baseline between the two groups. The mean value of BOP decreased in the VUS group from 32% at baseline to 20% after 6 months (p<0.001) and in the SRP group from 30% at baseline to 18% after 6 months (p<0.001). The results have shown that at moderately deep sites (initial PD 4,5 mm) mean CAL changed in the test group from 4.6±1.2 to 4.2±1.6 mm (p< 0.001) and in the control group from 4.8±1.3 to 4.4±1.5 mm (p<0.001). At deep sites (inital PD>6 mm) mean CAL changed in the test group from 8.5±1.9 to 7.9±2.4 mm (p<0.001) and in the control group from 7.9±1.6 to 7.2±2.2 mm (p<0.001). No statistically significant differences in any of the investigated parameters were found between the two groups. Conclusion: Non-surgical periodontal therapy with the tested ultrasonic device may lead to clinical improvements comparable to those obtained with conventional hand instruments. [source]