Cigarette Smoking and Alveolar Bone in Young Adults: A Study Using Digitized Radiographs

Rosa, Guillermo M.; Lucas, Gabriela; Lucas, Oscar N.

doi:10.1902/jop.2008.060522

Cited by 57 publications

(41 citation statements)

References 75 publications

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“…The regions of interest (ROIs) were established in 1 mm 2 and were positioned on two regions lateral to the root of the selected site, one placed at the alveolar bone crest (ROI I) and another 3 mm below the first, at the medullar bone (ROI II) ( Fig. 1) (adapted from Rosa et al 2008). To demarcate the ROIs, a standard 1 mm 2 square radiopaque net was placed in the digital sensor, used for calibration together with the radiographic system when evaluating the image.…”

Section: Radiographic Measurementsmentioning

confidence: 99%

“…ROI II showed change in the ABD of sites with PPD≥5 mm in δ2. Previus studies (9,20,21) have suggested the use of control ROIs, but the authors did not use the same standard of positioning, also there is still no definition as to which would be the most specific control region. Maybe this region should be located even further from the defect and the treated area, as described by the Hwang et al (9) and Toback et al (21).…”

Section: Periodontal Treatment and Alveolar Bone Densitymentioning

confidence: 99%

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Effects of Nonsurgical Periodontal Treatment on the Alveolar Bone Density

Barros

Fischer

et al. 2014

Braz. Dent. J.

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The aim of this study was to evaluate the effects of nonsurgical periodontal treatment on alveolar bone density (ABD) and bone height (BH) using direct digital radiography. Nineteen patients (mean age: 36±7.3 years) with generalized chronic periodontitis were examined at baseline, 90 (90AT) and 180 (180AT) days after nonsurgical periodontal therapy. Radiographs were taken from two sites with specific characteristics: 39 sites with probing pocket depth (PPD)≤3 mm and clinical attachment level (CAL)≤1 mm (shallow sites); and 62 sites with PPD≥5 mm and CAL≥3 mm (deep sites). The ABD was assessed considering the bone regions of interest at the alveolar bone crest (ROI I) and at the medullar bone (ROI II). The BH was assessed considering the distance from the alveolar bone crest to the cementoenamel junction. Mann-Whitney test was used for the overall demographic data, Wilcoxon test was used to compare the baseline, 90AT and 180AT data as well as to compare the groups and subgroups within the same evaluation period. The significance level was set at 5%. The deep sites showed a significant increase of ABD in ROI I at 90AT (p<0.007) and at 180AT (p<0.005). ABD decrease was seen in ROI II at 180AT (p<0.04) while BH reduced only in shallow sites at 90AT. In conclusion, an increase in ABD was observed in deep sites of patients with generalized chronic periodontitis. However, no significant change in alveolar BH was observed in these sites.

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Section: Radiographic Measurementsmentioning

confidence: 99%

Section: Periodontal Treatment and Alveolar Bone Densitymentioning

confidence: 99%

Effects of Nonsurgical Periodontal Treatment on the Alveolar Bone Density

Barros

Fischer

et al. 2014

Braz. Dent. J.

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“…Recently, digital subtraction radiography has been used to assess the effect of cigarette smoking on alveolar bone (Rosa et al 2008). The selection of areas of interest in the proximal sites allowed determination of CADIA values, which were related to bone density changes.…”

Section: Subtraction Radiography and Periodonticsmentioning

confidence: 99%

Clinical and radiographic evaluation of NobelActive^TM dental implants

Yeung

Zee

et al. 2011

Clinical Oral Implants Res

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Objectives To conduct a randomised controlled trial to evaluate the short‐term clinical and radiographic efficacy of the NobelActive™ system and to evaluate the relative importance of achieving primary stability at placement. Materials and methods A total of 32 subjects were recruited and, using a split‐mouth design, the NobelActiveTM implant was compared with a contralaterally matched Brånemark implant. Both implants were placed in a single surgical procedure into healed sites using a one‐stage protocol and reviewed at monthly intervals. NobelActiveTM implants were functionally loaded with provisional restorations at 1 month and all implants were restored with final crowns 3 months post‐implant placement. The implant was assessed using peak insertion torque values, resonance frequency analysis (RFA), clinical parameters, digital subtraction radiography, and cone beam computed tomography. Results The insertion torque was significantly greater for the NobelActiveTM implant group (P = 0.02), although no observable difference in RFA values were found. Preliminary results of 6 months follow‐up suggest comparable clinical and radiographic healing responses between the test and control implants. Within the limits of the sample population, the survival rates were lower with the test implants, although this difference was not statistically significant. Conclusions The NobelActiveTM implant system requires higher insertion torques and can also achieve greater primary stability compared with a control implant system. Short‐term survival and marginal bone levels of NobelActiveTM and control implants are comparable, although the NobelActiveTM implant system appeared to be more technique‐sensitive.

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“…The prevalence of periodontitis is significantly more pronounced in smokers compared with non-smokers (Do et al 2008;Ojima et al 2006;Rosa et al 2008;Torrungruang et al 2005). Smoking-associated periodontitis typically involves the destruction of the supporting tissues of the teeth, with clinical symptoms of attachment loss, pocket formation, bone loss, and eventually tooth loss (Bergstrom 2004;Ojima et al 2006;Torrungruang et al 2005;Ylostalo et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Functional expression of α7 nicotinic acetylcholine receptors in human periodontal ligament fibroblasts and rat periodontal tissues

et al. 2010

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Tobacco smoking is the main risk factor associated with chronic periodontitis, but the mechanisms that underlie this relationship are largely unknown. Recent reports proposed that nicotine plays an important role in tobacco-related morbidity by acting through the nicotinic acetylcholine receptors (nAChRs) expressed by non-neuronal cells. The aim of this study was to investigate whether alpha 7 nAChR was expressed in periodontal tissues and whether it functions by regulating IL-1 beta in the process of periodontitis. In vitro, human periodontal ligament (PDL) cells were cultured with 10(-12) M of nicotine and/or 10(-9) M of alpha-bungarotoxin (alpha-Btx), a alpha 7 nAChR antagonist. The expression of alpha 7 nAChR and IL-1 beta in PDL cells and the effects of nicotine/alpha-Btx administration on their expression were explored. In vivo, an experimental periodontitis rat model was established, and the effects of nicotine/alpha-Btx administration on expression of alpha 7 nAChR and development of periodontitis were evaluated. We found that alpha 7 nAChR was present in human PDL cells and rat periodontal tissues. The expressions of alpha 7 nAChR and IL-1 beta were significantly increased by nicotine administration, whereas alpha-Btx treatment partially suppressed these effects. This study was the first to demonstrate the functional expression of alpha 7 nAChR in human PDL cells and rat periodontal tissues. Our results may be pertinent to a better understanding of the relationships among smoking, nicotine, and periodontitis.

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Cigarette Smoking and Alveolar Bone in Young Adults: A Study Using Digitized Radiographs

Cited by 57 publications

References 75 publications

Effects of Nonsurgical Periodontal Treatment on the Alveolar Bone Density

Effects of Nonsurgical Periodontal Treatment on the Alveolar Bone Density

Clinical and radiographic evaluation of NobelActive^TM dental implants

Functional expression of α7 nicotinic acetylcholine receptors in human periodontal ligament fibroblasts and rat periodontal tissues

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Cigarette Smoking and Alveolar Bone in Young Adults: A Study Using Digitized Radiographs

Cited by 57 publications

References 75 publications

Effects of Nonsurgical Periodontal Treatment on the Alveolar Bone Density

Effects of Nonsurgical Periodontal Treatment on the Alveolar Bone Density

Clinical and radiographic evaluation of NobelActiveTM dental implants

Functional expression of α7 nicotinic acetylcholine receptors in human periodontal ligament fibroblasts and rat periodontal tissues

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Product

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Clinical and radiographic evaluation of NobelActive^TM dental implants