Er:YAG Laser Treatment of Moderate Chronic Periodontitis

Study Overview
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Brief Summary
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The Er:YAG laser possesses specific characteristics allowing to be used in non-surgical periodontal treatment. The aim of the resent study was to evaluate the long-term clinical effectiveness of Er:YAG laser monotherapy in the treatment of moderate chronic periodontitis and to compare it with conventional hand instrumentation. MATERIALS AND METHODS: 451 teeth (1,099 periodontal pockets) from 30 patients with moderate chronic periodontitis (initial probing pocket depth 4 to 6 mm) were allocated for subgingival scaling and root planing in two groups - hand instrumentation (control) and Er:YAG laser instrumentation with 100mJ/15Hz (test). Using a computerized periodontal probe, patients were examined for probing pocket depth (PPD), gingival recession (GR), clinical attachment level (CAL), bleeding on probing (BOP), plaque presence (FMPS) at baseline, one, three, six and 12 months after instrumentation.

Official Title
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Long-term Stability of Er:YAG Laser Non-surgical Periodontal Treatment

Conditions
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Chronic Periodontitis, Generalized, Moderate

Intervention / Treatment
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* Device: Er:YAG laser
* Other: hand instruments


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: at least two teeth per quadrant with PPD between 3,6 mm and 6,4 mm; loss of clinical attachment up to 4 mm bleeding on probing Exclusion Criteria: periodontal treatment in the last 12 months; systemic diseases; systemic medication

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Er:YAG laser<br>Teeth treated with Er:YAG laser | Device: Er:YAG laser<br> <br> * Other names: Er:YAG laser, LiteTouch, Light Instruments, Israel;|
| Active Comparator: Hand instruments<br>Teeth treated with Gracey curettes | Other: hand instruments<br> <br> * Other names: Gracey curettes;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Probing pocket depth | Change in PPD (measured as a distance between the gingival margin and the depth of the pocket) using computerised periodontal probe | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Gingival recession | Change in GR (measured as a distance between the gingival margin and the cement-enamel junction) using computerised periodontal probe | 1 year | 
| Clinical attachment level | Change of CAL (measured as a distance between the cement-enamel junction and the depth of the pocket) using computerised periodontal probe | 1 year | 
| Bleeding on probing | Change in BoP | 1 year | 
| Plaque level | Change of Plaque index | 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Lasers, Periodontitis, Root planing, Treatment outcome