Effect of Oral Magnesium on Anesthesia and Postoperative Analgesia After Surgical Removal of the Lower Third Molars.

Study Results

Results pending

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Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1/PHASE2

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-04-15

Study Completion Date

2019-06-15

Brief Summary

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The operation of the lower third molars is one of the most common oral surgery procedures in the world. The surgery is mostly done in local anesthesia which makes the surgery as pleasant as possible for the patient. In addition to anesthesia control, it is also extremely important to insure postoperative pain control since that is the nuisance that patients are most likely to complain about after oral surgery. It has been noticed that magnesium added to local anesthetics can improve and prolong its effect, but also reduce postoperative pain and accelerate recovery. It can also be used as an auxiliary to control pain and inflammation, which is why we will use it in this study, because we have not been able to find magnesium data in the literature for the removal of the lower third molars.

Studies that have already been conducted with oral magnesium are for the purpose of preventing asthma, migraine, for reducing mood swings in PMS, reducing pain after endotracheal intubation, and many others.

Removal by using operative procedure is the only way to remove lower third molars.

The main objective of the study is to demonstrate the influence of the orally received magnesium citrate (before and after surgical removal of the lower third molar) on the quality and duration of the anesthetic block and also its effect on postoperative pain control. Other specific objectives are to investigate the effect of pre/postoperatively received magnesium on:

1. swelling stage after surgery.
2. time occurrence and duration of anesthesia.
3. trismus stage after the operative procedure.
4. the total amount of analgetics taken after surgery Benefits for the respondents will be in the assumption that the anesthetic block of the mandibular nerve will last longer with better quality, thus making the surgical procedure more pleasant and that the overall postoperative pain will be lessened and recovery faster in the magnesium citrate group. We also assume that in the magnesium citrate group trismus will be less pronounced and that swelling in postoperative days will be smaller.

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Detailed Description

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Study design and sample description of this study was performed at the Department of Oral Surgery of Clinical Hospital Dubrava, Zagreb, Croatia.

Respondents are the patients who need to do the operation of both lower third molars and due to this they are in the Clinical Hospital Dubrava. All participants will sign informed consent for participation in the research. Their participation will be voluntary.

The study is approved by Ethics Committee of the School of Dental Medicine, Zagreb, Croatia (03.2017). The identity of the subjects will be protected in all phases of the study.

Respondents in this research will be exposed to the following risks:

Risks related to the procedure: pain, swelling, trismus, inflammation, paresthesia of the mandibular nerve branches (alveolar, lingualis), bleeding.

Drug related risks: allergic reactions, gastrointestinal symptoms (diarrhea). The study will be a double-blind, randomized, split mouth, placebo controlled trial.

It will be carried out with two different oral forms of magnesium citrate:

1. in tablet form,
2. in the form of a lozenge. Each of these forms will have a same group

1- tablet group, 2-lozenge group. Both of these groups will have a control placebo group. Before the anaesthesia, all principles of surgical sterility and asepsis with oral cavity flushing for 1 min. ( 15 ml. 0.12% CHX.-Chlorhexidine) will be performed Both sides (over a period of 14 days) will be anaesthetized with the same anaesthetic 3M ESPE, Ubistesin-articain (1ml injection suspension containing 40mg of articainchloridum and 0.005mg adrenalin in a form of adrenalinchloridium).

For one side, which will be randomly selected, the patient will receive magnesium citrate tablets (Solgar tablets) / lozenges (Diasporal lozenges), and for other placebo tablets / lozenges, which will be identical to the right drug, so the same examinee will be a test and control group. The surgeon, assistant, surgical approach, surgery technique and instruments will be the same in all subjects regardless of magnesium citrate or placebo group of the same.

The selection of anaesthesia combination with oral placebo or magnesium for each side will be determined by random selection, which will not be known to either the patient or the examiner until the test is completed. After the surgery, all patients will be given the same written and oral instructions for postoperative care.

The same analgesics will also be prescribed: Ibuprofen tbl 400 mg which will be taken as needed, and magnesium citrate tbl. 200 mg / magnesium citrate lozenges 100 mg or placebo depending on randomized selection.

Magnesium citrate tablets /placebo tablets patients will take 3 days postoperatively so that 400 mg /per day magnesium citrate tbl (Solgar) / placebo will be taken at the same time that will correspond to the time taken for the first tablets, 2 hours preoperatively.

In the group that will use lozenges the patients will take them 30 min. before the procedure a 100 mg. magnesium citrate lozenge (Diasporal) / placebo lozenge and continue to take up to 4 pastilles per day over the next 3 days in the same time intervals as it was on the day of surgery.

Therapeutic drug doses will be used far below the doses used in the previous studies where the magnesium citrate tablets were used.

During the use of magnesium citrate / placebo (3 days after surgery) the patient will fill out a prepared written questionnaire that will be discussed thoroughly before the first operation.

Postoperative follow-up will be done by the single experienced therapist and by the patient (see Outcome Measures).

The following symptoms which will be assessed are: pain, swelling, maximum inter-incisal opening of mouth, total amount of analgesics taken after surgery, time occurrence and duration of anesthesia and personal experience of pain after surgery (see Outcome Measures). These symptoms will be evaluated on the day of operation and 3 days after surgery.

The planned sample size is at least 40 molars in each group, that is 80 operations in a total of 40 patients using tablets, and equal to the group using lozenges.

Conditions

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Postoperative Pain Third Molar Postoperative Complications

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The study will be a double-blind, randomized, split mouth, placebo controlled trial.

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

The selection of anaesthesia combination with oral placebo or magnesium for each side will be determined by random selection, which will not be known to either the patient or the examiner until the trial is completed.

Study Groups

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Magnesium citrate tablet group

In this group patients will take magnesium citrate tablets 3 days postoperatively, so 400 mg magnesium citrate tbl (Solgar) /per day will be taken at the same time that will correspond to the time the first tablets were taken, 2 hours preoperatively.

Group Type PLACEBO_COMPARATOR