Navitip needles

Manufactured by Ultradent

Sourced in United States

NaviTip needles are a type of dental lab equipment designed for precise application of materials. They feature a narrow, tapered design to facilitate controlled delivery of various dental materials.

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Lab products found in correlation

Flexofile, by Dentsply (1 mentions) Gates glidden drill, by Dentsply (1 mentions) Protaper universal, by Dentsply (1 mentions)

4 protocols using navitip needles

Antimicrobial Efficacy of ALAD and NaOCl

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Following the contamination period, the 70 roots were divided into 7 groups of 10 roots, including the positive and negative control groups (Figure 3C–F).
In details, the different groups were treated as followed:

ALAD: samples incubated 45 min with ALAD gel;

LASER: samples irradiated 7 min with the optical fiber at 50 mW;

ALAD + LASER: samples incubated 45 min with ALAD and then irradiated 7 min with the optical fiber at 50 mW;

NaOCl 2.5%: samples incubated 15 min with sodium hypochlorite 2.5%;

NaOCl 1.0%: samples incubated 15 min with sodium hypochlorite 1%;

CTRL: positive control, only Enterococcus faecalis ATCC 29212, received no treatment;

Negative control: uninoculated sample.

The irrigation with ALAD and sodium hypochlorite was performed with disposable syringes and 30-gauge NaviTip needles (Ultradent, South Jordan, UT, USA) taken up to 1 mm of the working length. NaOCl was inactivated with 10% sodium thiosulfate for 1 min. The root canal was rinsed with 100 µL of sterile PBS and the samples were taken by the sequential use of 3 sterile paper points placed to the working length. Each paper point remained in the canal for 1 min. Paper points were transferred to tubes containing 1 mL of PBS and immediately processed.

Carlesi T., Dotta T.C., Pierfelice T.V., D’Amico E., Lepore S., Tripodi D., Piattelli A., D’Ercole S, & Petrini M. (2023). Efficacy of 5% Aminolaevulinic Acid and Red Light on Enterococcus faecalis in Infected Root Canals. Gels, 9(2), 125.

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Endodontic Treatment Using K3 System

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Initially, the entrance orifice of the canal and the cervical and middle thirds were prepared using Largo No. 2 (Dentsply Maillefer, Rio de Janeiro, RJ, Brazil) and No. 4, 3, and 2 Gates Glidden drills (Dentsply-Maillefer, Ballaigues, Switzerland), respectively, according to the crown-down technique. The working length was determined by inserting a size 15 Flexo-File (Dentsply-Maillefer) up to the apical foramen, and subtracting 1 mm from this measurement.
The K3 system (SybronEndo, Scafati, Italy) was used for instrumentation, with a file of size 55/0.04 as the final instrument. An amount of 2.5 mL of 2.5% NaOCl (Formula e Ação, São Paulo, SP, Brazil) was used at change of each file, using disposable syringes and 30 G NaviTip needles (Ultradent, South Jordan, UT, USA) calibrated at 1 mm short of the working length. The root canals were dried with absorbent paper cones (Tanari, São Paulo, SP, Brazil), and filled using the lateral condensation technique and Fillapex sealer (Angelus, Londrina, PR, Brazil). Next, the specimens were stored at 37°C and 100% humidity for 7 days to allow the sealer to set.

Poletto D., Poletto A.C., Cavalaro A., Machado R., Cosme-Silva L., Garbelini C.C, & Hoeppner M.G. (2017). Smear layer removal by different chemical solutions used with or without ultrasonic activation after post preparation. Restorative Dentistry & Endodontics, 42(4), 324-331.

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Endodontic Canal Irrigation Protocols for Post Placement

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The filling material was removed from the cervical and middle thirds using No. 2 Largo drills (Dentsply Maillefer, Brazil) calibrated at 10 mm. The canal was then prepared using a drill compatible with the diameter of the No. 2 fiberglass post from the Exacto system (Angelus), and the specimens were radiographed.
Afterwards, the root canals were irrigated according to the experimental groups (Table 1), using disposable syringes and 30 G NaviTip needles (Ultradent). In the groups where ultrasonic activation was performed, a 0.20 mm cylindrical insert (Irrisonic, Helse, São Paulo, SP, Brazil) was coupled to the device (Profi Class, Dabi Atlante, São Paulo, SP, Brazil) and activated at a power of 20% for 60 seconds, except on the G8 specimens where the activation was performed for only 20 seconds. The final irrigation was performed with 5 mL of 0.9% saline solution (NaCl) in all the groups except for the G1 specimens. Afterwards, the canals were dried again using absorbent paper points (Tanari).

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Root Canal Instrumentation Protocol

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A size 15 K-file (Dentsply Sirona, Ballaigues, Switzerland) was passively introduced into each root canal to confirm the working length (16 mm). Teeth with laterally displaced foramina and/or canal length < 17 mm were replaced. The root apex was sealed using utility wax and the canals were instrumented using the ProTaper Universal (Dentsply Sirona, Ballaigues, Switzerland) according to the following protocol. Specimens were stabilized in a bench vice. The cervical third was prepared using the SX instrument and the middle and apical thirds were prepared using the S1, S2, F1, F2, F3, F4, and F5 instruments. The root canals were irrigated with 2 mL 2.5% NaOCl at each file change using NaviTip needles (Ultradent Products Inc.) attached to plastic syringes (Ultradent Products Inc. South Jordan, USA). A VDW Silver (VDW GmbH, Munich, Germany) was used to operate all files. For the final rinse, the root canals were irrigated with 5 mL 17% EDTA (Da Terra, Ribeirão Preto, Brazil) for 3 min, irrigated with 5 mL of distilled water, and dried using sterile absorbent paper cones (# 50) (Dentsply Sirona, Ballaigues, Switzerland).

Trindade T.F., Barbosa A.F.S., Castro-Raucci L.M.S., Silva-Sousa Y.T.C., Colucci V, & Raucci-Neto W. (2018). Chlorhexidine and proanthocyanidin enhance the long-term bond strength of resin-based endodontic sealer. Brazilian oral research, 32.

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