Der Einfluss der Obturatorgröße auf die Dichtigkeit von Thermafil®-Wurzelkanalfüllungen nach standardisierter Aufbereitung

Ziel dieser Untersuchung war es, den Einfluss verschiedener Obturatorgrößen auf die apikale Dichtigkeit von Wurzelfüllungen zu untersuchen. Die Untersuchung wurde an 50 menschlichen Prämolaren durchgeführt. Je 10 Zähne wurden bis ISO-Größe 40 aufbereitet und mit Thermafil®- Obturatoren der Größe 40, 35, 30, 25 und 20 obturiert. Die Farbstoff-Penetrationstiefe wurde ermittelt. Unter Berücksichtigung der Einschränkungen einer In-vitro-Untersuchung kann zusammengefasst werden, dass Obturatoren kleiner als ISO-Größe 30 die apikale Undichtigkeit bei auf ISO 40 aufbereiteten Kanälen signifikant erhöhten. Die Verwendung von ISO-Größe 35 und 30 zeigte dagegen keine signifikante Verschlechterung.

The aim of the present study was to determine the apical microleakage after root canal filling with different sizes of Thermafil® obturators in an in vitro investigation. 50 extracted premolars were used. 10 teeth per group were endodontically prepared to size 40 and obturated with obturators size 40, 35, 30, 25 and 20. Linear dye penetration was measured. Within the limitations of an in vitro investigation it can be concluded that using Thermafil® obturators smaller than 30 might increase the risk of apical leakage. Compared to the control the use of size 35 and 30 showed no significant increase of penetration depth.

Schlüsselwörter

Thermafil® - apikale Dichtigkeit - Farbstoffpenetration - Wurzelkanalfüllung - Wurzelkanalbehandlung

Key Words

Thermafil® - Apical Leakage - Dye Penetration - Root Canal Obturation - Root Canal Treatment

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