Comparison of the sealing ability of four obturation techniques

Greene, Henry Anthony; Wong, Marston; Ingram, Timothy A.

doi:10.1016/s0099-2399(06)81884-4

Cited by 22 publications

(12 citation statements)

References 14 publications

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“…Another possible variable is that there may have been a greater amount of sealer used that may have contracted or washed out with the addition of the liquid media. Greene et al . (1990) compared obturation techniques and found that groups with the least leakage had very little sealer.…”

Section: Discussionmentioning

confidence: 99%

Coronal leakage following three obturation techniques

2001

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Section: Discussionmentioning

confidence: 99%

Coronal leakage following three obturation techniques

2001

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“…Ova tehnika opturacije je nazvana "hibridna termomehani~ka kompakcija" (HTMK). Ovom dosta jednostavnom tehnikom ostvareni su mnogo bolji kako laboratorijski tako i klini~ki razultati opturacije kanala korena zuba, uz jednostavno izvodjenje ove faze endodontskog le~enja i racionalizaciju vremena izvodjenja 13,16,17,18 .…”

Section: Kratak Sadr@ajunclassified

Root canal obturation by hybrid technique of thermomechanical gutta-percha compaction

Ilic

2004

SERBIAN DENT J

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The purpose of the study was to present and discuss the thermomechanical hybrid technique in root canal obturation and investigate the efficiency of apical hermeticity. The hybrid obturation technique is well explained and performed through the lexan models and extracted teeth in aim of better visualisation and comprehension as suggested by the author Tagger and McSpadden’s articles. The technique consisted of lateral condensation of gutta-percha that was followed by thermomechanical compaction of the same mass using Ni-Ti flexible compactor. Firstly the master gutta-percha cone had to be adapted and then the master machine compactor selected for setting inside the canal. Upon laterally arranging gutta-percha cones, the master compactor was inserted between canal wall and gutta-percha. The master compactor was rotated for 5-6 seconds to creat heat to soften the cones to merge themselves and fill the first half of the canal. The bigger compactor served to fill the rest of the canal adding more gutta-percha cones. In comparison to the single cone and simple manual compaction techniques the hybrid technique is less time consuming more efficient in homogenicity and apical leakage. Considering the many device-consuming techniques the hybrid one is simpler to perform and cheaper as well. Precaution is to be taken when treating curved and narrow canals where much patience is needed due to possible compactor breakage and root fracture. It can be concluded that this hybrid technique is preferable particularly in cases of relatively straight canals with preserved apical foramen when time is to be saved for the radiographic and prosthetics procedure that has to be done during the same visit, which is very often convenient for patient and therapist

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“…8 The two traditional techniques are lateral and vertical compaction of gutta-percha; sealability is similar in both. 9,10 More recent approaches have been introduced that depend on warming and softening formulations of guttapercha with special devices and instruments and then placing the gutta-percha incrementally.…”

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Endodontic Treatment of First Mandibular Molar with Severely Curved Roots

Mossa¹,

Al-Hamer²,

Al-Ghatam³

et al. 2017

ijpcdr

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The apical foramen (AF) varies in size and configuration with maturity. Before maturation, the AF is open. With time and deposition of dentin and cementum, it becomes smaller and funneled. Significantly, the foramen usually does not exit at the true (anatomic) root apex, but it is offset by approximately 0.5 mm and seldom more than 1.0 mm from the true apex. The degree of deviation is unpredictable and may vary considerably from the average, particularly in the older tooth that has undergone cementum apposition. For this reason, root canal preparation and obturation end short of the anatomic root apex as seen in the radiograph. Usually, the AF is not visible radiographically. The clinician relies on averages or electronic measuring devices to determine the extent of canal preparation and obturation. Source of support: Nil Conflict of interest: None CASE REPORTA 30-year-old female was referred from the general dental practitioner clinic. The tooth was opened and formocresol pulpotomy was done; neither fistulae nor edema was observed.A standard endodontic procedure was carried out after local anesthesia of 2% lidocaine hydrochloride containing 1:100,000 epinephrine. A rubber dam was placed for endodontic access; then, the temporary restoration was removed clearly.Examination of the pulp floor with an endodontic explorer revealed three distinct canals -mesiobuccal (MB), mesiolingual (ML), and distal canals (D). A K-type file (Maillefer, Switzerland) was used for gross removal of pulp tissue from the three main canals. The canals were negotiated using a small file size 10 (Maillefer, Switzerland), using 17% ethylenediaminetetraacetic acid (EDTA) (Technical + General LTD London, UK) solution, and then irrigating with 5.25% sodium hypochlorite solution (NaOCl).Determination of working length by Advanced Apex Locator NSK IPEX 2 Locator (Fig. 1) was as follows: MB: 18.5 mm, ML: 18 mm, and D: 21 mm.ProTaper SX (Dentsply Maillefer) was then used to enlarge the orifices of the canals. All canals were chemomechanically prepared using crown-down technique. ProTaper nickel-titanium (NiTi) file sized S1, S2, and F1 were used successively (Fig. 2). The canals were then irrigated by NaOCl and 17% EDTA as irrigating solution.

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Comparison of the sealing ability of four obturation techniques

Cited by 22 publications

References 14 publications

Coronal leakage following three obturation techniques

Coronal leakage following three obturation techniques

Root canal obturation by hybrid technique of thermomechanical gutta-percha compaction

Endodontic Treatment of First Mandibular Molar with Severely Curved Roots

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