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CompletedNCT03641482Updated Mar 27, 2019

NBF Gingival Gel Application After Impacted Lower Third Molar Surgery

An interventional study of NBF and Placebo in Alveolar Osteitis, sponsored by Universidad Complutense de Madrid. Completed. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-03-27.

Sponsored by Universidad Complutense de Madrid · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was Jul 2017, 9 years 3 months ago, and no results have been posted to the registry.
  • Registered 1 year 11 months after the study started (first participant enrolled Sep 2016, registered Aug 2018).
Phase
Not applicable
Study type
Interventional
Enrollment
13
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Background: Alveolar osteitis is one of the most frequent complications after lower third molar extraction, and is usually accompanied by inflammation, pain and poor wound healing. Several local interventions have been used to reduce these complications with limited effectiveness.

Purpose: To clinically evaluate the use of propolis extract, nanovitamin C and nanovitamin E gel for the prevention of surgical complications related to impacted lower third molar extraction.

Methods: A randomized, triple-blind, split-mouth, pilot study is being performed in patients needing bilateral lower third molar extraction with similar surgical difficulty. Surgical extractions are randomly being performed and NBF gingival gel (TG) or placebo (PBG) are randomly being applied inside postextraction sockets by a blinded surgeon. The patients are being instructed to apply it 3 times/day in the surgical wound for 7 days. One month later, the contralateral wisdom tooth is being extracted and the opposite gel is being applied. Alveolar osteitis (AO) is being diagnosed following Blum's criteria. Swelling is being assessed by measuring the facial perimeter. Wound healing is being evaluated with a semi-quantitative scale as good, satisfactory or insufficient. Postoperative pain is being recorded using a visual analog scale (VAS) for 7 days. Analgesic pill intake is being recorded by each patient. Variables are being registered by a blinded researcher to 3M extractions at one, two, three and seven postoperative days.

02

Conditions studied

  • Alveolar Osteitis

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Keywords

  • third molar surgery
  • oral surgery
  • propolis
  • NBF gingival gel
  • post-surgical complications
  • clinica trial
03

In context

Dry Socket

46 studies on the registry are indexed under Dry Socket; 10 are open to participants now.

This study's enrollment of 13 is below the median of 60 across 41 interventional studies indexed under Dry Socket.

Browse Dry Socket studies →

Lead sponsor

Universidad Complutense de Madrid is the lead sponsor of 206 studies on the registry; 64 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

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.

Inclusion criteria

The inclusion criteria are:

  • cooperative adult patients able to fulfil the study protocol,
  • needing surgical extractions of both lower third molars,
  • with similar surgical difficulty according to Pederson scale.

Exclusion criteria

Exclusion Criteria:

The exclusion criteria are

  • refuse to participate in the study,
  • failure to attend 24, 48, and 72 hours, as well as, 7 days post-surgical appointment visits,
  • smokers,
  • systemic diseases as diabetes mellitus or being ,
  • patients who take local or systemic antibiotics less than 3 months ago, anti-inflammatory or anticoagulant medication in the previous 4 weeks,
  • patients who require antibiotic prophylaxis,
  • pregnant or breastfeeding women,
  • patients with chronic periodontitis in active phase or
  • with history of allergies to any of the components of local anaesthetics, antibiotics, AINEs, or NBF gingival gel.
Terms in these criteria, in plain language(1)

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.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Participant, Care provider)
Enrollment
13 participants (actual)

Study arms

  • Active comparator
    NBF

    Propolis Extract, Ascorbic Acid, Tocopherol Acetate, Sodium-Monofluorophosphate, Silicon Dioxide, Glycerin, D-sorbitol, Polyethyleneglycol 150, Sodium Carboxymethylcellulose, Xylitol, Sterol Glycoside, Peppermint Oil, L-Menthol, Methyl Hydroxybenzoate and Deionized Water

    Drug: NBF

  • Placebo comparator
    Placebo

    Sodium-Monofluorophosphate, Silicon Dioxide, Glycerin, D-sorbitol, Polyethyleneglycol 150, Sodium Carboxymethylcellulose, Xylitol, Sterol Glycoside, Peppermint Oil, L-Menthol, Methyl Hydroxybenzoate and Deionized Water

    Device: Placebo

Interventions

  • DrugNBF

    Once the molar is extracted, the socket is cleaned with water, NBF gel is introduced, and the flap is closed. Then, the patients are instructed to apply NBF Gel in the surgical wound 3 times per day for 7 days after brushing their teeth. Previously they have to dry the area of the wound with gauze.

  • DevicePlacebo

    Once the molar is extracted, the socket is cleaned with water, placebo gel is introduced, and the flap is closed. Then, the patients are instructed to apply placebo gel in the surgical wound 3 times per day for 7 days after brushing their teeth. Previously they have to dry the area of the wound with gauze.

06

What researchers measure

Primary outcomes

  1. Alveolar Osteitis: intense neuralgic pain in the post-extraction socket in the second or third postoperative day that do not disappear with analgesics beside a partially or totally disintegrated clot

    yes or no

    Time frame: from baseline to 24, 48, 72 hours post intervention

Secondary outcomes

  1. Swelling: it was evaluated with a flexible metric tape measuring the facial perimeter from trago to pogonion. A first measurement was made before surgery, which was compared with the measurements taken at 24, 48 and 72 hours of the extraction.

    changes

    Time frame: from baseline to 24, 48, 72 hours and 7 days post intervention

  2. Trismus: it was assessed measuring the maximum opening from the inter incisive points.

    changes

    Time frame: from baseline to 24, 48, 72 hours and 7 days post intervention

  3. Wound healing: it was assessed with a semi-quantitative scale (good, satisfactory or insufficient).

    changes

    Time frame: from baseline to 1 week post intervention

  4. Post extraction pain: it was recorded using a visual analog scale, ranging from 0 (no pain) to 10 (the worst pain imaginable) at 9 pm of 7 consecutive days.

    changes

    Time frame: from baseline to 1 week post intervention

  5. Number of rescue analgesic pills consumption: recorded for the first 3 days by the patients.

    number

    Time frame: from baseline to 3 days post intervention

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Blum IR. Contemporary views on dry socket (alveolar osteitis): a clinical appraisal of standardization, aetiopathogenesis and management: a critical review. Int J Oral Maxillofac Surg. 2002 Jun;31(3):309-17. doi: 10.1054/ijom.2002.0263. PubMed 12190139 ↗
  • Haraji A, Rakhshan V, Khamverdi N, Alishahi HK. Effects of intra-alveolar placement of 0.2% chlorhexidine bioadhesive gel on dry socket incidence and postsurgical pain: a double-blind split-mouth randomized controlled clinical trial. J Orofac Pain. 2013 Summer;27(3):256-62. doi: 10.11607/jop.1142. PubMed 23882458 ↗
  • Madrazo-Jimenez M, Rodriguez-Caballero A, Serrera-Figallo MA, Garrido-Serrano R, Gutierrez-Corrales A, Gutierrez-Perez JL, Torres-Lagares D. The effects of a topical gel containing chitosan, 0,2% chlorhexidine, allantoin and despanthenol on the wound healing process subsequent to impacted lower third molar extraction. Med Oral Patol Oral Cir Bucal. 2016 Nov 1;21(6):e696-e702. doi: 10.4317/medoral.21281. PubMed 27475700 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Sep 2016 to primary completion in Jul 2017, 10 months.

Of 22 interventional studies with no phase under Dry Socket, half reached primary completion within 10 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 24. This study's 10 months is close to that.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 1, 2018
First posted
Aug 22, 2018
StartActual
Sep 1, 2016
Primary completionActual
Jul 15, 2017
CompletionActual
Feb 20, 2018
Last update
Mar 27, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 27, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03641482
Collaborators
Bio Nature Essences S.L
Responsible party
Rosa María López-Pintor Muñoz (Associate professor, Universidad Complutense de Madrid) — Principal investigator
First posted
Aug 22, 2018
Start date
Sep 1, 2016
Primary completion
Jul 15, 2017
Completion
Feb 20, 2018
Last update
Mar 27, 2019

Oversight

FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2019. You cannot join it, but the record below documents what was studied.

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