An observational study in Smokers and Periodontal Status, sponsored by Al-Hawash Private University. Completed at 1 site in Syria. Open to participants aged 18 Years to 25 Years. Per ClinicalTrials.gov, last updated 2026-09-02.
Sponsored by Al-Hawash Private University · Observational
This study compares the different effects of traditional cigarettes, e-cigarettes, and narghile on periodontal health among a sample of Al-Hawash Private University students. The main question it aims to answer is: Are there statistically significant differences in periodontal parameters among different types of smokers?
The emergence of e-cigarettes and the increasing popularity of hookah smoking, alongside traditional cigarette use, have created a complex health landscape, particularly regarding periodontal health. Despite growing global awareness of smoking-related dangers, particularly among young people due to marketing of "safer" alternatives, there is a lack of research directly comparing the effects of these three smoking methods on periodontal tissues.
While research extensively covers the impact of smoking on periodontal tissues, despite the individual studies on each type of smoking, no study has directly compared the effects of cigarettes, e-cigarettes, and hookah on periodontal health in the same population.
Aim: study and compare the different effects of traditional cigarettes, e-cigarettes, and narghile on periodontal health among a sample of students at Al-Hawash Private University.
1,509 studies on the registry are indexed under Smoking; 193 are open to participants now.
This study's enrollment of 90 is below the median of 150 across 301 observational studies indexed under Smoking.
Browse Smoking studies →Al-Hawash Private University is the lead sponsor of 6 studies on the registry; 4 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Smoker students at Al-Hawash Private University
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Other: Non-Interventional Study
Other: Non-Interventional Study
Other: Non-Interventional Study
Non-Interventional Study
Plaque Index (PI)
Plaque Index (PI) The PI was evaluated according to the Silness and Löe (1964) system. This system assesses the plaque thickness at the tooth cervical margin (closest to the gum) and has four scores: 0: no plaque; 1. a film of plaque adhering to the free gingival margin which is nonvisible and it can be scraped from the tooth surface using a probe; 2. moderate accumulation of soft deposits within the gingival pocket or between the tooth and the gingival margin; 3. abundance of soft matter within the gingival pocket and/or on the tooth and the gingival margin. The presence of visible dental plaque was recorded on the four sites (vestibular, lingual, mesial, and distal) of all the teeth, except the third molars. three PI classes (PI%; \[0-1\[; \[1-2\[; \[2-3\]) were arbitrarily defined
Time frame: At enrollment
Gingival Index (GI)
The gingival status was evaluated using the method of Löe and Silness (1963). The GI score perfectly evaluates the marginal and inter proximal tissues separately on the basis of the following three criteria (Löe \& Silness, 1963): 0: no inflammation, healthy gingiva; 1. mild inflammation, slight change in color, slight edema, no bleeding on pressure; 2. moderate inflammation, moderate glazing, red ness, bleeding on pressure; 3. severe inflammation, marked redness and hypertrophy, ulceration, tendency to spontaneous bleeding.
Time frame: At enrollment
Probing Pocket Depth (PPD)
PPD is the distance between the gingival margin and the apical depth of the periodontal probe tip penetration. The depth of the sulci or pockets was probed using a Williams periodontal probe with markings 1, 2, 3, 5,7,8, 9, 10 mm. The clinical measurements were based on the four sites (buccal, mesial, distal, and lingual) of all the teeth, except the third molars (Natto et al., 2005b).
Time frame: At enrollment
Clinical Attachment Level (CAL)
Clinical attachment level (CAL) is measured from the cementoenamel junction to the bottom of the sulcus or pocket at the four sites. The mean is then calculated for each patient.
Time frame: At enrollment
Bleeding On Probing (BOP)
The bleeding on probing was assessed through gentle probing of the orifice of the gingival crevice .If bleeding occurs within 10 seconds, a positive finding was established and the number of positive sites was recorded and then expressed as the percentage of the number of sites examined.
Time frame: At enrollment
Tooth Mobility (TM)
Tooth mobility, was performed by alternatively pressing on the tooth buccal and lingual surfaces using one finger and one metallic instrument Tooth mobility was recorded (Fleszar et al., 1980) as follows: 0: physiologic mobility, firm tooth; 1. slightly increased mobility; 2. definite to considerable increase in mobility but no function impairment; 3. extreme mobility, a loose tooth that would be incomparable in function
Time frame: At enrollment
Gingival Recession (GR)
Gingival recession is measured by measuring the distance from the cementoenamel junction to the free gingival margin at the midpoint of the buccal surface.
Time frame: At enrollment
Furcation Involvement ( FI)
Furcation involvement, is investigated clinically with a probe and classified according to the Hamp's classification system: Class 0 = no horizontal loss of periodontal tissue support (apart from the original scoring scale). Class I ≤3mm horizontal loss of periodontal tissue support. Class II \> 3 mm horizontal loss of periodontal tissue support, no through-and-through furcation Class III through-and-through furcation (required to see the tip of the probe at the contralateral furcation opening) and additionally
Time frame: At enrollment
Plan to share: Undecided
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Ran from Jun 2025 to primary completion in Aug 2026, 14 months.
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This study is completed, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.
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Al-Hawash Private University