Microhardness of Radicular Dentin Treated with 980-nm Diode Laser and Different Irrigant Solutions

Objective: The aim of this study was to evaluate the microhardness of radicular dentin after treatment with 980-nm diode laser and different irrigant solutions. Background data: There are few reports of the consequences of diode laser irradiation emitted at 980 nm on the mechanical properties of dentin. Methods: Seventy-two single canal, human canines with complete root formation were randomly distributed among three groups (n = 24), according to the irrigant solution used in the biomechanical preparation: distilled water; 1% NaOCl; and, 1% NaOCl + 17% EDTA. These groups subsequently were divided into three subgroups (n = 8), according to the diode laser parameter: no irradiation (control); 1.5W/100 Hz; and 3.0 W/100 Hz. Laser was applied with helicoidal movements for 20 sec. Roots were sectioned in slices and the fragment corresponding to the middle third was submitted to the microhardness test (KHN) at depths of 30, 90, 150, and 300 mu m. Results: ANOVA and Tukey tests showed that the microhardness of the groups irradiated with 1.5 W/100 Hz (49.7 +/- 11.2) and 3.0W/100 Hz (50.6 +/- 11.9) were statistically similar to each other (p > 0.05) and different (p < 0.05) from the non-irradiated group (45.0 +/- 9.7). Higher microhardness values were obtained at 150 mu m (49.2 +/- 11.0) and 300 mu m (52.3 +/- 11.3) which were similar among themselves and different (p < 0.05) only at the depth of 30 mu m (44.4 +/- 10.5). No differences were found among the irrigant solutions (p > 0.05). Conclusions: The microhardness of the radicular dentin increased after irradiation with 980-nm diode laser.

980-nm laser lipolysis (LAL): About 674 procedures in 359 patients

Since the first studies by Apfelberg in 1994, laser lipolysis (LAL) has been on the rise. Laser lipolysis leads to reduced operator fatigue, excellent patient tolerance, quick recovery time, as well as the additional benefit of dermal tightening. This article reports a 5-year experience of LAL and underlines the potential evolutions of the technique.

Ms. hebr. oct. 162 - [Sammelband in 6 Teilen: Handschriftenkonvolut]

Vorbesitzer: Abraham Merzbacher

Ms. Barth. 162 - Quaestiones casuales

Vorbesitzer: Bartholomaeusstift Frankfurt am Main. Foliierung: 1 - 49, 49a, 50 - 262.

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 162 - Antwortschreiben zur beruflichen Entwicklung des Sohnes

u.a.: Angaben zu Musik und Oper; Empfehlung Schopenhauers der Fortsetzung des Studium der Jurisprudenz; Anfrage auf berufliche Vermittlung der Tochter in Frankfurt; Georg Friedrich Händel; Friedrich Rückert;

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 980 - Beileidschreiben anlässlich des Todes der Ehefrau Wilhelm Gwinners

u.a. Pessimismus; Sozialdemokratie; Anarchismus; Politik; Adam Ludwig von Doss; Zitate;

Ms. Praed. 162 - Sermones. Tractatus

Vorbesitzer: Dominikanerkloster Frankfurt am Main;

Ms.Ff.F.Stoltze 3. 162 - Brief von S. Keit an Friedrich Stoltze

Stoltze: Gedichte, Besprechung im Hamburger Nordstern, Zu seiner Rezension, Übersendung eines Manuskripts über Johann Gottfried Seume, zu dessen 100. Geburtstag, Bitte um Prüfung und Weitergabe an den Verlag Keller

Ms. Ff. Mus. 980 - Domin. XIV post Trinit. : Es ist das Hertz ein trotzig und verzagt Ding p. ; a. 2 Violini, 2 Oböe, 1 Viola, Canto, Alto, Tenore, Basso con i ripieni + Violoncello, Violono in ripieno + Organo

di Georgio Filippo Telemann

Ms. lat. oct. 162 - Theologia positiva

Vorbesitzer: Legatum Waldschmidianum