Assessment of root curvature and distance using computed tomography

Petersilka, Gregor J.; Draenert, M.E.; Jervøe‐Storm, Pia‐Merete; Heinecke, Achim; Flemmig, Thomas Frank

doi:10.1007/s00784-002-0165-4

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…The safety of glycine air polishing has been reported in several research in vitro and in vivo ( Flemmig et al, 2012 ; Moene et al, 2010 ; Petersilka et al, 2002 ), and our study confirmed the safety of SGAP again. Previous study had proved tooth stain and supragingival biofilm could be removed by supragingival air polishing ( Zhao, He & Meng, 2015 ), and present study demonstrated subgingival periodontal pathogens could be removed as well.…”

Section: Discussionsupporting

confidence: 88%

The effect of supragingival glycine air polishing on periodontitis during maintenance therapy: a randomized controlled trial

Zhao

et al. 2018

PeerJ

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BackgroundGlycine air polishing has been proved to be safe, comfortable and time-saving. Whether it could substitute ultrasonic scaling to remove dental plaque biofilm during periodontal maintenance remains unclear. The purposes of this study were to evaluate the effect of supragingival glycine air polishing (SGAP) on the subgingival periodontal pathogens during maintenance therapy and to check the association of periodontal pathogens and clinical parameters.MethodsTwenty-three chronic periodontitis patients during their maintenance therapy were enrolled in the 12-week study. According to randomized split-mouth design, the test side was treated with SGAP (65 μm), while the control side was treated with supragingival ultrasonic scaling and polishing (SUSP) with rubber cup. Clinical examination including plaque index (PLI), probing depth (PD), bleeding index (BI) were performed at baseline and 12 weeks post-treatment. Sampling of the subgingival plaque at each investigational site (mesiobuccal site of the mandibular first molar) was performed at baseline and 2, 4, 8, 12 weeks after maintenance treatment. Four periodontal pathogens including Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola and Fusobacterium nucleatum were detected by 16S rDNA polymerase chain reaction.ResultsClinical status generally improved after treatment in both groups. PLI in both groups, PD in SGAP group and bleeding on probing (%) in SUSP group significantly decreased after treatment (p < 0.05). There was no significant difference of clinical parameters between two groups before and after treatment. The detection rates of P. gingivalis, T. denticola in both groups, T. forsythia in SUSP group and F. nucleatum in SGAP group decreased after maintenance treatment in both groups, although no significant difference was found, and it rebound to baseline level at 12 weeks after maintenance treatment. There was no significant difference between SGAP group and SUSP group at any time point. T. denticola-positive sites had significantly greater BI than T. denticola-negative sites (p < 0.05).DiscussionSupragingival glycine air polishing had a reliable effect in removing subgingival dental plaque biofilm during maintenance period, and three months may be a proper maintenance interval for pockets not more than 5 mm.

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Section: Discussionsupporting

confidence: 88%

The effect of supragingival glycine air polishing on periodontitis during maintenance therapy: a randomized controlled trial

Zhao

et al. 2018

PeerJ

View full text Add to dashboard Cite

show abstract

“…In addition, glycine air polishing can be used in patients who are afraid of the noise of ultrasonic scaling. The safety of glycine air polishing has been reported in several research in vitro and in vivo (Flemmig et al 2012;Moene et al 2010;Petersilka et al 2002), and our study confirmed the safety of supragingival glycine air polishing again. Previous study had proved tooth stain and supragingival biofilm could be removed by supragingival air polishing (Zhao et al 2015), and present study demonstrated subgingival periodontal pathogens could be removed as well.…”

Section: Discussionsupporting

confidence: 89%

Peer Review #2 of "The effect of supragingival glycine air polishing on periodontitis during maintenance therapy: a randomized controlled trial (v0.2)"

2018

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Background. Glycine air polishing has been proved to be safe, comfortable and time-saving.Whether it could substitute ultrasonic scaling to remove dental plaque biofilm during periodontal maintenance remain unclear. The purposes of this study were to evaluate the effect of supragingival glycine air polishing on the subgingival periodontal pathogens during maintenance therapy and to check the association of periodontal pathogens and clinical parameters. Methods. Twenty-three chronic periodontitis patients during their maintenance therapy were enrolledin the 12-week study. According to randomized split-mouth design, the test side was treated with supragingival glycine (65μm) air polishing (SGAP), while the control side was treated with supragingival ultrasonic scaling and polishing with rubber-cup(SUSP). Clinical examination including plaque index(PLI),probing depth(PD), bleeding index(BI) were performed at baseline and 12 weeks posttreatment.Sampling of the subgingival plaque at each investigational site (mesiobuccal site of the mandibular first molar) was performed at baseline and 2, 4, 8, 12 weeks after maintenance treatment. Four periodontal pathogens including Porphyromonas gingivalis , Tannerella forsythia, Treponema denticola and Fusobacterium nucleatum were detected by 16S rDNA polymerase chain reaction (PCR). Results. Clinical status generally improved after treatment in both groups. PLI in both groups, PD in SGAP group and bleeding on probing (BOP) (%) in SUSP group significantly decreased after treatment (p <0.05). There was no significant difference of clinical parameters between two groups before and after treatment. The detection rates of P. gingivalis , T. denticola in both groups, T. forsythia in SUSP groupand F. nucleatum in SGAP group decreased after maintenance treatment in both groups, although no significant difference was found. And it rebound to baseline level at 12 weeks after maintenance treatment. There was no significant difference between SGAP group and SUSP group at any time point. T. denticola-positive sites had significantly greater BI than T.denticola-negative sites (p <0.05). Discussion. Supragingival glycine air polishing had reliable effect in removing subgingival dental plaque biofilm during maintenance period. And three months may be a proper maintenance interval for pockets not more than 5 mm.

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Roots of the maxillary first and second molars in horizontal relation to alveolar cortical plates and maxillary sinus: computed tomography assessment for infection spread

et al. 2005

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The purposes of this study were to investigate the horizontal relationship of the roots of maxillary molars with the cortical plates and the maxillary sinus and to investigate the influence of these relationships on the spread of odontogenic infection. Computed tomography images of 120 control subjects and 49 patients with infection originating in the maxillary first or second molar were investigated. In the control group, more than 60% of the first molar roots contacted both palatal and buccal cortical plates (type A), while such contact was not seen in more than 60% of second molars. The floor of maxillary sinus was most frequently observed at the level between the bifurcation and apices of roots in both first and second molars. In patients with infection, cortical changes were more frequently seen on the buccal side than on the palatal side, and 80% of patients with buccal cortical change showed the position in which the buccal roots were close to the buccal cortical plate. Mucosal thickening of the maxillary sinus was found in 87.8%. The buccopalatal spread of odontogenic infection originating in the maxillary first and second molars was influenced by the horizontal root position in relation to the cortices.

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Assessment of root curvature and distance using computed tomography

Cited by 4 publications

References 20 publications

The effect of supragingival glycine air polishing on periodontitis during maintenance therapy: a randomized controlled trial

The effect of supragingival glycine air polishing on periodontitis during maintenance therapy: a randomized controlled trial

Peer Review #2 of "The effect of supragingival glycine air polishing on periodontitis during maintenance therapy: a randomized controlled trial (v0.2)"

Roots of the maxillary first and second molars in horizontal relation to alveolar cortical plates and maxillary sinus: computed tomography assessment for infection spread

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