Light-Tip^®

The Right Tip for Efficient Curing

Light-Tip is the simplest device to obtain tight proximal contact in cervical areas for class 2 restorations.

The Fact is, to obtain satisfactory curing with a high conversion rate in light-curing composites, every part of the composite material has to be thoroughly and deeply irradiated by light in proper wavelength range.

The Problem, however, is that the depth of cure, even with rapid curing lights, is limited by filling materials, tooth substances, and matrix system.  Incomplete polymerization of the material may reduce the durability of the filling because of increased solubility and absorption.  The biological compatibility of the material may also be affected due to release of unreacted resin.

The Problem is further enhanced by the fact that proper curing is particularly difficult to achieve in the cervical area of the class 2 restorations.  The proximal cervical surface is also difficult to inspect, to polish, and to clean.  The composite material itself may be prone to plaque adhesion, leading to gingival reactions from cervical restorations.  If the curing is deficient, corrosion of the surface may further promote plaque accumulation.  Thus the risk of development of secondary caries and gingival reaction will increase in an area already predisposed to such response.

The Solution is to get a burst of light energy in the most apical part of the tooth preparation in order to efficiently cure the cervical area of the proximal restoration.  This is achieved by the Light-Tip.

The Denbur Patented Light-Tip has a magnified prism constructed in the middle which transforms direct or broad light to a concentrated light.  The light is then directed to the center of the focal point of the Light-Tip.  As the light is concentrated to the tip, it illuminates with ultra high light strength in the apical part of the tooth preparation.

Technique: Any conventional metal or plastic matrix bands, and any type of wedges may be used with the Light-Tip.  When proceeding with a class 2 preparation, apply half a millimeter of resin to the proximal box.  With the curing lamp switched off, insert, or press down the Light-Tip from the occlusal direction into the resin in the proximal box.  Use the Light-Tip to push the matrix in firm contact with the adjacent tooth.  Now switch on the curing lamp.  Maintain pressure for approximately 40 seconds.  Withdraw the Light-Tip when curing is completed.

The procedure will form an "arch" of the cured resin in the proximal box, keeping the matrix in contact with the adjacent tooth.  The rest of the restoration is completed without the Light-Tip.

Figure 1    Section of premolar with class 2 cavity.  Composite material is inserted into proximal box.

Figure 2    Light-Tip is pressed into the material before curing.

Figure 3    After curing the first portion, the tip is removed and the rest of the restoration is built up and cured.

Benefits. With the Light-Tip a tight proximal contact is obtained easily and consistently.  At the same time, resin in depth of the proximal box is cured due to concentration of light into the deeper portion of proximal box.  This improves the curing of the cervical part of the composite, strengthening the filling and its resistance to chemical attack.  It also reduces the contraction gap between the filling material and the cavity wall.  Consequently, a significant increase in the quality can be expected when class 2 composite restorations are performed using the Light-Tip.

In short, there are two advantages of using the Light-Tip: 1- a burst of light energy is obtained in the apical part of the tooth preparation, thus depth of cure; and 2- due to pushing the Light-Tip against the adjacent tooth, obtaining a tight contact in the cervical area as well.

The Denbur Light-Tip is available in C type (Circular) and E type (Elliptical).  The technique to using each is the same.  The C type is useful for any type of class 2 restoration, while the E type is designed specifically for restorations where a larger point of contact is needed.  Unlike the conically shaped C type, the E type has a truncated side where the contact is to be made.  There are 2 small indicators on each side of the E type to guide the clinician to the direction of the tip to be placed in the interproximal box.

Light-Tip C type (Circular)        Light-Tip E type (Elliptical)

LIGHT-TIP MAY BE COLD STERILIZED USING YOUR OWN CHEMICAL DISINFECTANT, OR AUTOCLAVED UP TO 270ºF. 

Please note: Autoclaving may affect the transparency of the Light-Tip.

Light-Tip Sizes, Shapes, and Packaging

SIZES:

8mm.     To fit curing wands with diameter of 7.7-8.2 mm.
9mm.     To fit curing wands with diameter of 8.7-9.2 mm.
9.5mm   To fit curing wands with diameter of 9.3-9.7 mm.
12mm.   To fit curing wands with diameter of 12.0-12.4 mm.

SHAPES:

Circular Tip, Cone Shaped, "C Type"
Elliptical Tip, Truncated, "E Type"

Light-Tip is a registered trademark of Denbur, Inc.
Patent No. 5791898.  Other Patents pending.
Manufactured by Denbur, Inc.
Made in USA.

Pricing excludes VAT and are recommended selling prices

Copyright © 2010 Dentoid Limited  

Information contained on this site is subject to change without notice 
Site last updated 25/04/2010