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Bacterial Biofilm Removal Using Static and Passive Ultrasonic Irrigation.

Joy J, Mathias J, Sagir VM, Babu BP, Chirayath KJ, Hameed H - J Int Oral Health (2015)

Bottom Line: Using system GT instruments (Dentsply Malliefer, Switerzland).The mean percentage of canal surface with residual collagen increased with the coronal level of canal, decrease in apical size and taper of canal preparation and decrease in the volume of the irrigant.The PUI was found to be more effective in the removal of collagen, especially in the apical part of the root canal.

View Article: PubMed Central - PubMed

Affiliation: Senior Lecturer, Department of Conservative Dentistry & Endodontics, Mar Baselios Dental College, Kothamangalam, Kerala, India.

ABSTRACT

Background: The aim of the present study was to evaluate the efficiency of two irrigating techniques - static and dynamic (passive ultrasonic instrumentation) irrigation in the elimination of bacterial biofilm.

Materials and methods: Forty extracted human permanent maxillary central incisors teeth with straight roots and single canals, were randomly allocated to two groups for static irrigation and passive ultrasonic irrigation (PUI). The root canal irrigant used was 2.5 % sodium hypochlorite. The root canals were prepared to tip sizes (20, 40) and tapers (0.04, 0.08). Using system GT instruments (Dentsply Malliefer, Switerzland). The teeth were split longitudinally into two, stained collagen was applied to the canal surfaces and the tooth reassembled for static and PUI. Digital images of the canal surface were taken before and after irrigation with 9, 18, 27 and 37 mL solution. The digital images were analyzed using ImageJ software (National Institute of Health, USA) to quantify residual canal coverage by the stained collagen. The data were analyzed using linear regression models and subjected to statistical analysis.

Results: The mean percentage of canal surface with residual collagen increased with the coronal level of canal, decrease in apical size and taper of canal preparation and decrease in the volume of the irrigant. There was less residual collagen after PUI compared with static irrigation. The canal surface facing the open side port of the needle had less residual collagen after irrigation than the opposing surface.

Conclusion: The stained collagen biomolecular film could not be removed completely either by passive ultrasonic instrumentation or static irrigation. The PUI was found to be more effective in the removal of collagen, especially in the apical part of the root canal.

No MeSH data available.


Related in: MedlinePlus

Mean percentage of canal surface coverage with residual collagen on the surface facing the side port of needle after passive ultrasonic irrigation (B: Samples from the PUI group, 1-4 denote different canal dimensions [1 = size 20/0.04; 2 = size 20/0.08; 3 = size 40/0.04 and 4 = size 40/0.08], c: Coronal third of canal, m: Middle third of canal and a: Apical third of canal).
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Figure 3: Mean percentage of canal surface coverage with residual collagen on the surface facing the side port of needle after passive ultrasonic irrigation (B: Samples from the PUI group, 1-4 denote different canal dimensions [1 = size 20/0.04; 2 = size 20/0.08; 3 = size 40/0.04 and 4 = size 40/0.08], c: Coronal third of canal, m: Middle third of canal and a: Apical third of canal).

Mentions: For static irrigation of 2.5% sodium hypochlorite, two tabular columns were done. One for facing the needle and another opposite to the side of needle (Graphs 1 and 2). For PUI of 2.5% sodium hypochlorite, two tabular columns were done. One for facing the needle and another opposite to the side of needle (Graphs 3 and 4). The values were tabulated and subjected to statistical analysis.


Bacterial Biofilm Removal Using Static and Passive Ultrasonic Irrigation.

Joy J, Mathias J, Sagir VM, Babu BP, Chirayath KJ, Hameed H - J Int Oral Health (2015)

Mean percentage of canal surface coverage with residual collagen on the surface facing the side port of needle after passive ultrasonic irrigation (B: Samples from the PUI group, 1-4 denote different canal dimensions [1 = size 20/0.04; 2 = size 20/0.08; 3 = size 40/0.04 and 4 = size 40/0.08], c: Coronal third of canal, m: Middle third of canal and a: Apical third of canal).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4513774&req=5

Figure 3: Mean percentage of canal surface coverage with residual collagen on the surface facing the side port of needle after passive ultrasonic irrigation (B: Samples from the PUI group, 1-4 denote different canal dimensions [1 = size 20/0.04; 2 = size 20/0.08; 3 = size 40/0.04 and 4 = size 40/0.08], c: Coronal third of canal, m: Middle third of canal and a: Apical third of canal).
Mentions: For static irrigation of 2.5% sodium hypochlorite, two tabular columns were done. One for facing the needle and another opposite to the side of needle (Graphs 1 and 2). For PUI of 2.5% sodium hypochlorite, two tabular columns were done. One for facing the needle and another opposite to the side of needle (Graphs 3 and 4). The values were tabulated and subjected to statistical analysis.

Bottom Line: Using system GT instruments (Dentsply Malliefer, Switerzland).The mean percentage of canal surface with residual collagen increased with the coronal level of canal, decrease in apical size and taper of canal preparation and decrease in the volume of the irrigant.The PUI was found to be more effective in the removal of collagen, especially in the apical part of the root canal.

View Article: PubMed Central - PubMed

Affiliation: Senior Lecturer, Department of Conservative Dentistry & Endodontics, Mar Baselios Dental College, Kothamangalam, Kerala, India.

ABSTRACT

Background: The aim of the present study was to evaluate the efficiency of two irrigating techniques - static and dynamic (passive ultrasonic instrumentation) irrigation in the elimination of bacterial biofilm.

Materials and methods: Forty extracted human permanent maxillary central incisors teeth with straight roots and single canals, were randomly allocated to two groups for static irrigation and passive ultrasonic irrigation (PUI). The root canal irrigant used was 2.5 % sodium hypochlorite. The root canals were prepared to tip sizes (20, 40) and tapers (0.04, 0.08). Using system GT instruments (Dentsply Malliefer, Switerzland). The teeth were split longitudinally into two, stained collagen was applied to the canal surfaces and the tooth reassembled for static and PUI. Digital images of the canal surface were taken before and after irrigation with 9, 18, 27 and 37 mL solution. The digital images were analyzed using ImageJ software (National Institute of Health, USA) to quantify residual canal coverage by the stained collagen. The data were analyzed using linear regression models and subjected to statistical analysis.

Results: The mean percentage of canal surface with residual collagen increased with the coronal level of canal, decrease in apical size and taper of canal preparation and decrease in the volume of the irrigant. There was less residual collagen after PUI compared with static irrigation. The canal surface facing the open side port of the needle had less residual collagen after irrigation than the opposing surface.

Conclusion: The stained collagen biomolecular film could not be removed completely either by passive ultrasonic instrumentation or static irrigation. The PUI was found to be more effective in the removal of collagen, especially in the apical part of the root canal.

No MeSH data available.


Related in: MedlinePlus