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OSA-F036-P7
OSAKADENTAL
901849900
New Folding Root Canal Measuring Instrument Apex Locator
Dental Apex Locator is an electronic device used in endodontics to determine the position of the apical foramen and therefore the length of the root canal space.
The principle is based on the electrical resistance of different tissues. When the circuit is complete, resistance decreases and current begins to flow. Apex locators function by using the human body to complete an electrical circuit. One side of the apex locator's circuitry is connected to an endodontic instrument.
This Apex Locator is foldable design and Charging model, can save the space and will be more convenient.
Its core function is to electronically measure the working length of a root canal with a high degree of accuracy. The working length is the distance from a fixed reference point on the tooth to the physiological apex (the cementodentinal junction), which is typically 0.5 - 1.0 mm short of the anatomical root tip.
Knowing this exact length is critical because:
Underfilling: Cleaning and filling short of the apex can leave infected tissue, leading to failure.
Overfilling: Cleaning and filling beyond the apex can push debris into the bone, cause postoperative pain, and delay healing.
Modern apex locators are multi-frequency devices. They work on the principle of electrical impedance:
The Circuit: The device completes an electrical circuit.
One electrode (a lip clip) is attached to the patient's lip.
A second electrode is a endodontic file or a dedicated measuring instrument that is inserted into the root canal.
Measuring Impedance: The device measures the electrical impedance (a combination of resistance and reactance) between the file in the canal and the lip clip.
Finding the Apex: The electrical characteristics of the tissues change predictably as the file tip moves from the canal (high impedance) to the periodontal ligament space (lower impedance). The apex locator's microprocessor analyzes these changes and calculates the file's position relative to the apex.
Display: The device displays this information in real-time, usually both numerically (in millimeters) and graphically on a screen.
New Folding Root Canal Measuring Instrument Apex Locator
Dental Apex Locator is an electronic device used in endodontics to determine the position of the apical foramen and therefore the length of the root canal space.
The principle is based on the electrical resistance of different tissues. When the circuit is complete, resistance decreases and current begins to flow. Apex locators function by using the human body to complete an electrical circuit. One side of the apex locator's circuitry is connected to an endodontic instrument.
This Apex Locator is foldable design and Charging model, can save the space and will be more convenient.
Its core function is to electronically measure the working length of a root canal with a high degree of accuracy. The working length is the distance from a fixed reference point on the tooth to the physiological apex (the cementodentinal junction), which is typically 0.5 - 1.0 mm short of the anatomical root tip.
Knowing this exact length is critical because:
Underfilling: Cleaning and filling short of the apex can leave infected tissue, leading to failure.
Overfilling: Cleaning and filling beyond the apex can push debris into the bone, cause postoperative pain, and delay healing.
Modern apex locators are multi-frequency devices. They work on the principle of electrical impedance:
The Circuit: The device completes an electrical circuit.
One electrode (a lip clip) is attached to the patient's lip.
A second electrode is a endodontic file or a dedicated measuring instrument that is inserted into the root canal.
Measuring Impedance: The device measures the electrical impedance (a combination of resistance and reactance) between the file in the canal and the lip clip.
Finding the Apex: The electrical characteristics of the tissues change predictably as the file tip moves from the canal (high impedance) to the periodontal ligament space (lower impedance). The apex locator's microprocessor analyzes these changes and calculates the file's position relative to the apex.
Display: The device displays this information in real-time, usually both numerically (in millimeters) and graphically on a screen.
