• Users Online: 46
  • Home
  • Print this page
  • Email this page
Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
Year : 2012  |  Volume : 1  |  Issue : 2  |  Page : 48-51

Accuracy of Working Length Determination Using Tri Auto Zx & Protaper Instruments: An In Vitro Study

1 Lecturer, Department of Conservative and Endodontics, Sinhgad Dental College and Hospital, Pune - 411 041, Maharashtra, India
2 Professor and Head, Department of Conservative and Endodontics, ACPM 's College of Dental Sciences, Dhule - 424 001, Maharashtra, India

Correspondence Address:
Niranjan Desai
Lecturer, Department of Conservative and Endodontics, Sinhgad Dental College and Hospital, Pune - 411 041, Maharashtra
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2277-4696.159136

Rights and Permissions

Aim and objectives: To assess the accuracy of Tri Auto ZX as an apex locator and its automatic apical reverse mechanism (AAR) set at 0.5, 1 and 1.5mm using Pro-Taper instruments. Materials and Methods: Forty-five freshly extracted single rooted human teeth were used and divided into three groups: (1) Teeth prepared using AAR set at 0.5mm (2) Teeth prepared using AAR set at 1mm (3) Teeth prepared using AAR set at 1.5mm.Tri Auto ZX (J. Morita, Kyoto, Japan) was activated to auto mode and biomechanical preparation was carried out using protaper instruments till size F3 for each group. The F3 instrument was stabilized at the position and roots were ground longitudinally until exposure of the instrument. Under stereomicroscope the distance between the file tip and apical foramen was measured. Results: The results showed the mean value for Groups was 0.4617mm, 0.8976mm and 1.5277mm respectively. Statistical analysis between the groups revealed that Groups I and III showed no statistical difference i.e (p<0.05). Group II showed the significance at 5% significance level. Conclusion: Tri Auto ZX showed to be an acceptable device for determining root canal length and instrumentation. Using a preset distance set at 0.5 and 1.5mm were more accurate than set at 1mm.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded1726    
    Comments [Add]    

Recommend this journal