Lares Research 557 Instructions For Use Manual

Swivel highspeed handpiece

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Distributed by:

Lares Research

295 Lockheed Ave

Chico, CA 95973 USA

Tel 530-345-1767

Fax 530-345-1870

Manufacturer:

Lares Research

295 Lockheed Ave

Chico, CA 95973 USA

www.laresdental.com

1-888-333-8440

Instructions For Use

Swivel Highspeed

Handpiece

Table of Contents

Summary of Contents for Lares Research 557

Page 1 Di t ib t d b Manufacturer: Swivel Highspeed Lares Research Lares Research 295 Lockheed Ave 295 Lockheed Ave Handpiece Chico, CA 95973 USA Chico, CA 95973 USA Tel 530-345-1767 www.laresdental.com © Copyright by Lares Research 2019 Fax 530-345-1870 1-888-333-8440...
Page 2: Technical Specifications
Technical Specifications...
Page 3: Table Of Contents
Table of Contents i Technical Specifications....................ii 1 Product Description ..................... 1 2 Introduction......................... 4 3 Safety .......................... 7 4 First Use........................15 5 Operation........................21 6 Reprocessing (Maintenance)..................32 7 Troubleshooting......................47 8 Warranty Terms and Conditions................. 57 9 Replacement Parts....................
Page 4: Product Description
1 Product Description Highspeed Handpiece, Swivel, Push Button 1.1 Purpose – Proper use Purpose: This highspeed handpiece is • Only intended for dental treatment. Any other type of use or alteration to the product is impermissible and can be hazardous. The handpiece is intended for the following uses: Removal of carious material, cavities and crown preparations, removal of fillings, processing of tooth and restoration surfaces.
Page 5 Indications for Use: The Lares Research 557 and 757 handpieces are intended to be used by a licensed dental professional to reduce hard tooth structure, carry out cavity preparations and perform restorative dentistry.
Page 6 Proper use: According to these regulations, this handpiece may only be used for the described application by a licensed dental professional. The following must be observed: • The applicable health and safety regulations, • The applicable accident prevention regulations, • These instructions for use. According to these regulations, it is the responsibility of the user to: •...
Page 7: Introduction
Observe all cautions and warnings during use. 2 Introduction Dear User, Congratulations on purchasing this Lares Research quality handpiece. You are now the owner of the most advanced highspeed handpiece available. By following these instructions you will be able to work smoothly, economically and safely.
Page 8 SYMBOLS Refer to the Chapter on Safety/Warning symbol Important information for users and service technicians Action request Can be sterilized with steam up to 135 °C (275 °F) 134 °C...
Page 9 This document is intended for dentists and their assistants. The section on starting up is also intended for service technicians. CAUTION Caution: United States federal law restricts this device to sale by or on the order of a dentist. (21 CFR 801.109) WARNING For professional use only.
Page 10: Safety
3 Safety 3.1 Description of safety instructions WARNING SYMBOL Structure DANGER The introduction describes the type and source of the hazard. This section describes the potential consequences of non-observance. The optional step includes necessary measures for hazard prevention. Description of hazard levels The safety instructions listed here, together with the three levels of danger, will help avert damage and injury.
Page 11 CAUTION CAUTION Indicates a hazardous situation that can cause damage to property or mild to moderate injuries. WARNING WARNING Indicates a hazardous situation that can cause death or serious injury.
Page 12 DANGER DANGER Indicates a hazardous situation that can directly cause death or serious injury. 3.2 Safety instructions WARNING Hazards for the care provider and the patient. In the case of damage, irregular running noise, excessive vibration, unusual warming or when the bur cannot be held securely by handpiece. Do not use further and have handpiece serviced.
Page 13 WARNING Hazard from contraindication. If the soft tissue in the oral cavity is injured, the compressed air may enable septic substances to enter the tissue. Using the handpiece in the presence of an open wound may result in subcutaneous emphysema and accompanying serious patient health hazards, including permanent disability or death.
Page 14 CAUTION Premature wear and malfunctioning from improper storage during long periods of nonuse. Reduced product life. The handpiece should be cleaned, serviced and stored in a dry location, according to instructions, before long periods of nonuse.
Page 15 CAUTION Risk due to incorrectly stored handpiece. Injury and infection caused by inadvertent bur contact. Damage to chucking system from dropping the handpiece. After treatment, place the handpiece properly in the handpiece nest, without the bur. CAUTION Burning hazard from hot handpiece head and instruments head cap. If the handpiece overheats, burns may arise in the oral area.
Page 16 CAUTION Hazard from use as a light probe. Do not use the device as a light probe with the bur rotating. The rotating bur can cause injury. Note: For safety reasons, we recommend that the push button chuck system be checked before each use.
Page 17 To ensure proper function, the highspeed handpiece must be set up according to the reprocessing (maintenance) methods described in this Lares Research Instructions for Use, and the care products and care systems described therein must be used. Lares Research recommends specifying a service interval to clean, service and check the functioning of the handpiece.
Page 18: First Use
4 First Use WARNING Hazard from non-sterile handpieces. Infection danger to the care provider and patient. Before first use and after each use, prepare and sterilize the handpiece. CAUTION Damage from soiled and moist cooling air. Contaminated and moist cooling air can cause malfunctions and lead to premature bearing wear.
Page 19 4.1 Attach the Lares MX swivel coupler. Screw the Lares MX swivel/MaxPower LED coupler onto the dental unit hose and tighten with the wrench. Rotate the spray ring on the Lares MX swivel/MaxPower LED coupler (some models) in order to regulate the amount of water. 4.2 Check the amount of water that flows from the handpiece.
Page 20 Check spray water ports and if necessary clean spray nozzles with the spray port cleaning tool (Cat No. 10541).
Page 21 4.3 Check the supply pressures Drive pressure of 2.2 to 2.8 bar (32 to 40 psi) is required to operate the handpiece. The air consumption is 49 to 55 Nl/min. (1.3 to 1.8 cfm), drive air pressure of 2.2 bar (32 psi) is recommended. Attach the air gauge (cat.
Page 22 WARNING Accelerated materials in unanticipated directions. The rotation of the handpiece has the potential to accelerate materials at high velocities in unanticipated directions that could affect the eye. The materials can be hard and sharp with the potential to damage unprotected eye. Use proper eye protection for the practitioner, staff and patient.
Page 23 4.4 Check the swivel coupler O-rings CAUTION Missing or damaged O-rings. Malfunctions and premature failure. Make sure that all O-rings on the coupling are undamaged. Number of available O-rings: 5...
Page 24: Operation
5 Operation Note: At the beginning of each workday, the water-conducting systems should be flushed for at least 2 minutes without the instrument being attached; due to the risk of contamination from reflux or back suction, then attach the handpiece and flush for an additional 20-30 seconds.
Page 25 5.1 Attach the handpiece WARNING Release of the Handpiece during treatment. A handpiece that is not properly locked in place can release from the Lares MX swivel/MaxPower LED coupler during treatment. Before each use, check if the handpiece is securely locked onto the Lares MX swivel/MaxPower LED coupler by pulling on it.
Page 26 CAUTION Damage from incomplete coupling. Incomplete coupling (especially during the afterglow period) can damage the high-pressure lamp or the LED of a Lares MX swivel/MaxPower LED coupler or reduce its service life. Check the seat of the handpiece on the coupling by pulling on it. Mount the handpiece completely on the Lares MX swivel/MaxPower LED coupler and push it backward until the coupler audibly locks in the handpiece.
Page 27 5.2 Remove the handpiece from coupler. Hold the coupling tight, pull the handpiece off while twisting slightly. CAUTION Premature wear due to leaving handpiece connected to coupler for extended periods. Leaving handpiece attached to coupler for extended periods may cause water deposits and corrosion, which may reduce its service life.
Page 28 5.3 Insert the burs (carbides or diamonds) Note Only use carbide or diamond burs that correspond to ISO 1797 type 3 that are made of steel or hard metal and meet the following criteria: • Shaft diameter: 1.59 to 1.60 mm (0.0626 to 0.0630 inches) •...
Page 29 WARNING Use of impermissible burs. Injury to the patient or damage to the handpiece. Observe the instructions for use, and use the burs properly. Only use burs that do not have visible identifying grooves on the shank. (see figure previous page) Never use carbide shank burs.
Page 30 WARNING Injury from using worn drill bits or burs. Burs could fall out during treatment and injure the patient. Never use burs with worn shanks. Never use burs with visible markings or damage on the shanks. CAUTION Danger of injury from burs (carbides or diamonds). Infections or cuts.
Page 31 WARNING Hazard from worn or damaged push button chuck system. The bur could fall out and cause injury. Pull on the bur to check that the chucking system is retaining the bur securely, use gloves or finger cots to prevent an injury or infection. Insert the bur gently into handpiece until it stops.
Page 32 WARNING Do not extend burs. The bur could fall out and cause injury. Fully seat all burs completely into the chuck before use. NOTE: Long fingernails may make bur changing difficult!
Page 33 5.4 Removing the carbide or diamond bur CAUTION Hazard from rotating bur. Lacerations. Do not touch rotating bur!
Page 34 5.4 Removing the carbide or diamond bur CAUTION Hazard from push button getting hot. Burns to patient tissue and damage to chucking system. Never press button while the bur is rotating. Remove the bur from the handpiece after treatment to avoid injury or infection while storing it.
Page 35: Reprocessing (Maintenance)
6 Preprocessing (Maintenance) Limitations on Reprocessing Repeated processing has minimal effect on these instruments. End of life is normally determined by wear and damage due to use. Have the highspeed handpiece inspected and serviced after 300 uses or once per year, whichever occurs first. Note Definition of Preprocessing - all necessary steps that must be completed between uses.
Page 36 6.1 Maintenance at the site of use (chair side) WARNING Hazard from non-sterile products. There is a risk of infection from contaminated handpieces. Take suitable personal protective measures (i.e. exam gloves, eye protection, 5 µm particulate filter mask). Remove all residual cement, composite or blood without delay. Clean and maintain the handpiece as soon as possible after treatment.
Page 37 6.2 Cleaning CAUTION Malfunctions from cleaning in the ultrasonic unit. Ultrasonic cleaning may cause severe damage to the product. Only clean manually. 6.2.1 Cleaning: Manual cleaning - external Accessories required: • Warm tap water 40 °C ± 5 °C (104 °F ± 10 °F) •...
Page 38 Manual cleaning process: Handpiece disassembly not required. Rinse product under warm flowing tap water to remove gross soil. Brush off and rinse under flowing warm tap water to remove all visible soil. Use filtered pressurized air to completely dry handpiece. If soil is still visible when dry, repeat the initial cleaning steps.
Page 39 6.2.2 Cleaning: Automated external cleaning Not applicable. 6.2.3 Cleaning: Manual cleaning of the inside Not applicable. 6.2.4 Cleaning: Automated internal cleaning Not applicable.
Page 40 6.3 Disinfection CAUTION Malfunctioning from using a disinfectant bath or disinfectant containing chlorine. Handpiece damage may result. Never disinfect in a thermo-disinfector or manually. 6.3.1 Disinfection: Manual disinfection - external Not Applicable 6.3.2 Disinfection: Manual disinfection - internal Not Applicable...
Page 41 6.3.3 Disinfection: Machine disinfection - external and internal Not Applicable 6.4 Drying Manual Drying Blow off the outside and inside with compressed air until water drops are no longer visible. Automatic Drying Not Applicable...
Page 42 6.5 Care products and systems - Servicing CAUTION Sharp burs in the handpiece. Risk of injury from sharp or pointed burs. Remove bur before servicing. CAUTION Premature wear and malfunctions from improper servicing and care. Reduced product life. Perform proper care regularly!
Page 43 Note Lares Research only guarantees that its products will function properly when the care products used are those listed as accessories, as they were tested for proper use on our products. 6.5.1 Care products and systems - Servicing: Care with Lares One-Step Handpiece Conditioner Lares Research recommends applying handpiece conditioner after each time it is used, i.e.
Page 44 6.5.1 Care products and systems - Servicing: (Continued) Remove excess conditioner from the exterior of handpiece with a towel. Remove the shipping bur from the handpiece. Cover the product with clean towel. 6.5.2 Cleaning the chuck Using knurled base, screw chuck cleaning nozzle onto well shaken can of Lares One-Step Handpiece Conditioner.
Page 45 6.5.3 Inspection and Function Testing: All handpieces: Visually inspect for damage and wear. Haved serviced or discard damaged handpieces. 6.6 Packaging Prior to Autoclaving Note The autoclave bag must be large enough for the handpiece so that the bag is not stretched.
Page 46 6.7 Autoclaving Process handpieces in an autoclave. CAUTION Premature wear and malfunctions from improper servicing and care. Reduced product life. Before each autoclave cycle, service the handpiece with Lares One-Step Handpiece Conditioner.
Page 47 CAUTION Contact corrosion due to moisture. Leaving handpiece in autoclave after cycle has finished may damage the handpiece. Immediately remove the handpiece from the autoclave after the sterilization cycle to reduce condensation! CAUTION Do not use Flash Sterilization Techniques. These techniques are not validated for efficacy and damage to the handpiece may result.
Page 48 The Lares Research handpiece has a maximum temperature resistance up to 135 °C (275 °F). Autoclave with gravitation process for at least 15 minutes at 132 °C ± 1 °C (270 °F ± 1.8 °F) Drying time: 15 minutes minimum.
Page 49 Note The instructions provided above have been validated by Lares Research as being CAPABLE of preparing a handpiece for re-use. It remains the responsibility of the practitoner to ensure that the processing was actually performed using equipment, materials and personnel in the practitioners facility to achieve the desired result.
Page 50: Troubleshooting
The inconvenience of handpiece downtime can often be avoided by following the common sense problem diagnosis and corrective action procedures that follow. If the problem cannot be corrected using these procedures, return the handpiece directly to Lares Research. (Outside U.S.A. return to your authorized Lares distributor). Do not attempt to perform...
Page 51 7.1 Water Leak at Swivel Coupler Connection Replacing the O-rings on the swivel coupling. CAUTION Hazard from improper care of the O-rings. Malfunctions or complete failure of the handpiece. Do not use Vaseline or other grease or oil on O-rings. Note The O-ring on the coupling may only be lubricated with Lares One-Step Handpiece Conditioner spray.
Page 52 7.2 Excessively loud or shrill operating noise or high vibration, chatter. Bent or damaged bur; replace bur with new one and operate handpiece. CAUTION Hazard from bent, rusted or oversize bur. Using bent, rusted or oversize burs may cause loud noise or vibration and also may cause bur to be expelled by handpiece.
Page 53 7.3 Dry bearings due to lack of lubrication. Lubricate handpiece with Lares One-Step Handpiece Conditioner. Hose kinked, twisted or blocked slowing turbine speed. Straighten hose or replace if blocked. Worn or damaged bearings. Replace turbine. 7.4 Bur slips/walks out of chuck during operation. Using incompatible burs with undersize shank diameters (at or worn below ISO 1.59-1.60mm).
Page 54 Using incompatible burs with carbide shank. Discontinue use of carbide shank burs. Purchase burs with steel shank materials. Using incompatible burs with identifying grooves on the shank. Discontinue use of grooved burs. Purchase burs without identifying grooves. Chuck is worn from long use. Purchase replacement push button turbine or have handpiece repaired.
Page 55 7.5 Low rpm and poor cutting power. Hose kinked, twisted or leaking air; inspect entire length of hose. Straighten hose or replace if leaking. Insufficient air pressure at handpiece. Check air pressure at end of coupler using Lares air pressure gage. Adjust drive air pressure to 32-40 psi (220 -275 kPa) at the end of handpiece tubing.
Page 56 7.6 Intermittent or spitting spray, insufficient spray pattern or poor water atomization. Insufficient water flow. Adjust water flow valve to increase water flow. Clogged water or air ports. Clean out water spray ports or diffuser with spray port cleaning tool (cat.
Page 57 CAUTION Hazard from insufficient spray water. Overheating of the medical device and damage to the tooth. Check the spray water channels and clean the spray nozzles with the spray port cleaning tool (cat. no. 10541) if necessary. Do not cut tooth without water spray.
Page 58 7.7Handpiece fails to turn freely or engage easily on swivel coupler. Swivel coupler contaminated with debris or other foreign matter. Clean swivel coupler with alcohol. Dry thoroughly and re-lubricate with Lares One-Step Handpiece Conditioner. Lack of lubrication Lubricate with Lares One-Step Handpiece Conditioner. Dented or bent swivel coupler Replace swivel coupler.
Page 59 Replace light source bulb or lamp. REPAIR SERVICE For factory repair, send your handpiece directly to Lares Research, Attention: Technical Services Department, shipping prepaid (in USA only). For repair outside the USA, send your handpieces to your authorized Lares distributor.
Page 60: Warranty Terms And Conditions
8 Limited Warranty terms and conditions The following warranty conditions apply to this Lares Research highspeed handpiece: Lares provides the end customer with a warranty of proper function and guarantees zero defects in respect of material and processing for a period of 12 months from date of purchase, subject to the following conditions: In case of justified complaints, Lares will honor its warranty with a free replacement or repair performed by trained Lares tecnicians.
Page 61 Use of replacement or repair parts not manufactured by Lares Research may void this warranty. No liability is assumed when defects or their consequences are derived from manipulations or changes to the product by the customer or a third party. Service warranty claims will only be accepted when product is submitted directly to Lares Research, attention: Technical Service Department.
Page 62 The Lares handpiece you purchased is a highly calibrated product, designed to function properly only with genuine parts manufactured by Lares. Use of parts not manufactured by Lares is strictly prohibited. WARNING Hazard from non-Lares replacement parts. Use of non-genuine parts not manufactured by Lares will void the Lares Limited Warranty, and their use may cause malfunction that could lead to serious patient injury.
Page 63: Replacement Parts
9 Replacement parts and Accessories...
Page 64 Lares Research 72609 Rev 12/19...

This manual is also suitable for:

757