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A comparison of root surface temperatures using different obturation heat sources
F S Lee1, J E Van Cura, E BeGole
1University of Illinois at Chicago College of Dentistry, IL, USA.
Journal of Endodontics
|January 29, 1999
Summary
System B Heat Source (SB) warm vertical obturation is safe for root surfaces, unlike Touch
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Root surface temperature elevation during obturation can cause irreversible bone damage.
- Selecting appropriate heat sources is crucial for safe endodontic procedures.
Purpose of the Study:
- To compare root surface temperatures generated by three different heat sources during warm vertical obturation.
- To assess the potential for thermal damage to periradicular tissues.
Main Methods:
- Thirty human teeth (maxillary incisors, premolars, mandibular incisors) were prepared and obturated.
- Root surface temperatures were measured 2 mm below the cementoenamel junction using thermocouples and a digital thermometer.
- Three heat sources were evaluated: System B Heat Source (SB), Touch 'n Heat device (TH), and flame-heated carrier (FH).
Main Results:
- System B Heat Source (SB) produced a surface temperature rise of less than 10°C in all teeth.
- Touch 'n Heat (TH) produced a temperature rise greater than 10°C in mandibular incisors.
- Flame-heated carrier (FH) produced a surface temperature rise greater than 10°C in all tested teeth.
Conclusions:
- Warm vertical condensation using the System B Heat Source (SB) appears safe for supporting periradicular tissues.
- Caution is advised when using the Touch 'n Heat (TH) and flame-heated carrier (FH) on mandibular incisors due to potential thermal damage.