PurposeThe aim of this study was to measure the thickness of the mucous membrane lining the maxillary sinus and to correlate this thickening of the Schneiderian membrane with the presence or absence of periodontal bone loss of adjacent teeth, by using cone beam computed tomography (CBCT).Methods255 CBCT images were analyzed of which 140 images were selected for the study. Based upon the absence of radiographic periodontal bone loss and presence of 50% or more bone loss, these CBCT images were respectively divided into two groups viz. Group I (Healthy) and Group II (Periodontal Bone Loss Group), each group consisting of 70 images each. The thickening of the mucous membrane lining of the floor of maxillary sinus was measured at four points on the CBCT. These points were the anterior most point of the thickened mucosa, the posterior most point of the thickened mucosa, at the midpoint (MP) (point midway between the anterior most and the posterior most point) and the point of maximum thickness of the sinus mucosa.ResultsThe age adjusted mean thickness for Group II was significantly greater than that of Group I (p < 0.001) at all the four points. There was a positive association between presence of periodontal bone loss and thickening of Schneiderian membrane at the floor of the sinus. There was a weak positive association between age and mucosal thickness. Of all the four points measured, the maximum correlation between age and thickness was obtained at MP (r = 0.171), which was statistically significant (p = 0.044).ConclusionThe present study concluded that there is a positive association between presence of periodontal bone loss and thickening of mucosa of floor of maxillary sinus and also exhibited a weak positive relation between age and increased mucosal thickening of floor of maxillary sinus.
Background:The objective of our study was to evaluate and compare the effectiveness of coronally advanced flap (CAF) with or without the use of platelet-rich fibrin (PRF) membrane in the treatment of multiple adjacent recession defects (MARD) clinically and by cone-beam computed tomography (CBCT).Materials and Methods:Twenty healthy patients having 75 MARD were allocated randomly to CAF with orthodontic button group (CAFB) or CAFB + PRF membrane group (CAFB + PRF). Clinical parameters such as gingival recession depth (GRD), probing depth (PD), and keratinized tissue width (KTW) were calculated at baseline, 3 months, and 6 months. The distance from the facial alveolar crest of bone to gingival margin bone and gingival thickness (GT) at three different points were assessed by CBCT at baseline and 6-month postsurgery. Esthetic outcome and postoperative discomfort were evaluated using root coverage esthetic score and visual analog scale, respectively.Results:Percent root coverage achieved in CAFB category was 93.17% ± 13.23% and that in CAFB + PRF group was 95.68% ± 10.13% at 6 months, with no notable difference. Similarly, no difference was found in either group in GRD reduction, PD, and CAL postoperatively. Use of PRF resulted in statistically highly significant (P < 0.001) increased GT at 6 months’ time point as compared to participants treated with CAF without PRF, which indicates clinical and esthetic benefits achieved through the procedure.Conclusions:CAFB can be used successfully to treat MARD with predictable outcome. Additional benefit in terms of gain in KTW and GT can be achieved when PRF membrane is used as an adjunct.
Background. This study evaluated the effect of periodontal therapy on mucous membrane thickening in maxillary sinus in
chronic periodontitis patients using radiovisiography (RVG) and cone-beam computed tomography (CBCT).
Methods. The study population included 30 patients diagnosed with chronic periodontitis, exhibiting bilateral mucosal thickening
of maxillary sinus. The selected sites were randomly assigned to group I (control group - not receiving periodontal
therapy) and group II (test group - receiving periodontal therapy). The clinical parameters and mucosal thickening of the
maxillary sinus were evaluated at baseline and after 9 months.
Results. There was a significant decrease in the PPD, CAL as well as mucosal thickening in group II while, group I showed
an increase in these parameters. In group II at the end of 9 months the mean mucosal thickening reduction as assessed by
CBCT was 0.76±0.18, 0.73±0.24, 0.88±0.42 and 1.13±0.43 mm at the most anterior point (AP), the most posterior point (PP),
the mid-point (MP), point of maximum thickness (MT) as well as in the length of the thickened mucosal lining, respectively.
Conclusion. The results of our study indicated a reduction in the mucosal thickening of the maxillary sinus after surgical
periodontal therapy. The trial was registered with the Clinical Trial Registry of India (Trial REF/ 2016/02/010805).
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