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Effects of Anterior Bite Turbos on Deep Bite Treatment and Chewing Muscles

30 september 2026 uppdaterad av: Hilal Algul, Ankara University

Evaluation of the Effects of Anterior Bite Turbo Application During Deep Bite Treatment on Dentoalveolar and Skeletal Structures and Masticatory Muscles

This study evaluated how anterior bite turbos used during orthodontic treatment of deep bite affect chewing muscle activity and dental and skeletal measurements. Participants were followed in two nonrandomized groups: one received anterior bite turbos as part of orthodontic treatment, and the other received orthodontic treatment without bite turbos. Surface electromyography (EMG) was used to measure muscle activity over time. Cephalometric measurements were also evaluated to assess treatment-related changes.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

This prospective, nonrandomized, two-group study examined patients undergoing orthodontic treatment for deep bite. Anterior bite turbos were applied in one group; the comparison group underwent orthodontic treatment without anterior bite turbos during the study period.

Surface EMG recordings of the right and left masseter, anterior temporalis, and anterior digastric muscles were obtained at rest and during maximum voluntary clenching. Both groups were assessed before treatment, at approximately one month, and at approximately six months. The bite turbo group also underwent an EMG assessment immediately after bite turbo placement. Cephalometric measurements were evaluated at baseline and approximately six months.

Studietyp

Interventionell

Inskrivning (Faktisk)

28

Fas

  • Inte tillämpbar

Kontakter och platser

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Studieorter

  • Turkiet (Türkiye)
      • Ankara, Turkiet (Türkiye), 06560
        • Ankara University, Faculty of Dentistry, Department of Orthodontics

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Barn
  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Permanent dentition.
  • Angle Class I or Class II malocclusion.
  • Mild to moderate dental crowding (≤6 mm).
  • Non-extraction fixed orthodontic treatment planned.
  • No missing teeth, excluding third molars.
  • For the anterior bite turbo group: increased overbite (>4 mm).
  • For the control group: normal anterior overbite (2-3 mm).

Exclusion Criteria:

  • Bruxism or other oral parafunctional habits.
  • Temporomandibular joint disorder.
  • Craniofacial asymmetry, craniofacial syndrome, or cleft lip and/or palate.
  • Dental anomalies, including missing teeth other than third molars or abnormalities of tooth shape.
  • Previous orthodontic or myofunctional treatment.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Icke-randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Anterior Bite Turbo Group

Participants received anterior bite turbos as part of fixed orthodontic treatment for deep bite. Surface EMG and orthodontic measurements were obtained during follow-up.
Enhet: Anterior Bite Turbo

Composite resin bite turbos were bonded to the palatal surfaces of the maxillary central incisors during fixed orthodontic treatment. The bite turbos were used to disclude the posterior teeth during deep bite treatment.

Procedur: Fixed Orthodontic Treatment

Participants received fixed orthodontic treatment for deep bite.
Aktiv komparator: No Bite Turbo Group

Participants received fixed orthodontic treatment without anterior bite turbos during the study period. Surface EMG and orthodontic measurements were obtained during follow-up.
Procedur: Fixed Orthodontic Treatment

Participants received fixed orthodontic treatment for deep bite.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Mean Bilateral Masseter Muscle Activity at Rest
Tidsram: Baseline (before bite turbo placement), 1 month, and 6 months

Surface electromyographic activity of the right and left masseter muscles was recorded at rest. The mean of the two sides, measured in microvolts (µV), was evaluated at baseline, 1 month, and 6 months. Changes over time were compared between the anterior bite turbo and no bite turbo groups.
Baseline (before bite turbo placement), 1 month, and 6 months
Change in Mean Bilateral Anterior Digastric Muscle Activity During Maximum Voluntary Clenching
Tidsram: Baseline (T0), 1 month (T2), and 6 months (T3).

Surface EMG amplitude of the right and left anterior digastric muscles during maximum voluntary clenching was averaged for each participant and measured in microvolts (µV). Change over time was compared between groups.
Baseline (T0), 1 month (T2), and 6 months (T3).
Change in Mean Bilateral Anterior Digastric Muscle Activity at Rest
Tidsram: Baseline (T0), 1 month (T2), and 6 months (T3).

Surface EMG amplitude of the right and left anterior digastric muscles at rest was averaged for each participant and measured in microvolts (µV). Change over time was compared between groups.
Baseline (T0), 1 month (T2), and 6 months (T3).
Change in Mean Bilateral Anterior Temporalis Muscle Activity During Maximum Voluntary Clenching
Tidsram: Baseline (T0), 1 month (T2), and 6 months (T3).

Surface EMG amplitude of the right and left anterior temporalis muscles during maximum voluntary clenching was averaged for each participant and measured in microvolts (µV). Change over time was compared between groups.
Baseline (T0), 1 month (T2), and 6 months (T3).
Change in Mean Bilateral Anterior Temporalis Muscle Activity at Rest
Tidsram: Baseline (T0), 1 month (T2), and 6 months (T3).

Surface EMG amplitude of the right and left anterior temporalis muscles at rest was averaged for each participant and measured in microvolts (µV). Change over time was compared between groups.
Baseline (T0), 1 month (T2), and 6 months (T3).
Change in Mean Bilateral Masseter Muscle Activity During Maximum Voluntary Clenching
Tidsram: Baseline (T0), 1 month (T2), and 6 months (T3).

Surface EMG amplitude of the right and left masseter muscles during maximum voluntary clenching was averaged for each participant and measured in microvolts (µV). Change over time was compared between groups.
Baseline (T0), 1 month (T2), and 6 months (T3).

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Overbite
Tidsram: Baseline and 6 months.

Vertical overlap of the maxillary and mandibular central incisors was measured on lateral cephalograms in millimeters (mm). Change from baseline to 6 months was compared between groups.
Baseline and 6 months.
Change in Overjet
Tidsram: Baseline and 6 months.

Horizontal distance between the maxillary and mandibular central incisors was measured on lateral cephalograms in millimeters (mm). Change was compared between groups.
Baseline and 6 months.
Change in SN-GoGn Angle
Tidsram: Baseline and 6 months.

The angle between the Sella-Nasion and mandibular planes was measured on lateral cephalograms in degrees. Change was compared between groups.
Baseline and 6 months.
Change in Overbite
Tidsram: Baseline and 6 months.

The distance from anterior nasal spine to Menton was measured on lateral cephalograms in millimeters (mm). Change was compared between groups.
Baseline and 6 months.
Change in ANB Angle
Tidsram: Baseline and 6 months.

The A point-Nasion-B point angle was measured on lateral cephalograms in degrees. Change was compared between groups.
Baseline and 6 months.
Change in Upper Incisor to NA Distance
Tidsram: Baseline and 6 months.

The linear distance from the maxillary central incisor to the Nasion-A point line was measured in millimeters (mm). Change was compared between groups.
Baseline and 6 months.
Change in Upper Incisor to NA Angle
Tidsram: Baseline and 6 months.

The angle between the maxillary central incisor long axis and the Nasion-A point line was measured in degrees. Change was compared between groups.
Baseline and 6 months.
Change in IMPA
Tidsram: Baseline and 6 months.

The angle between the mandibular central incisor long axis and mandibular plane was measured in degrees. Change was compared between groups.
Baseline and 6 months.
Change in Interincisal Angle
Tidsram: Baseline and 6 months

The angle between the long axes of the maxillary and mandibular central incisors was measured in degrees. Change was compared between groups.
Baseline and 6 months
Change in Upper Lip to S Line Distance
Tidsram: Baseline and 6 months

The distance from the upper lip to Steiner's S line was measured in millimeters (mm). Change was compared between groups.
Baseline and 6 months
Change in Lower Lip to S Line Distance
Tidsram: Baseline and 6 months

The distance from the lower lip to Steiner's S line was measured in millimeters (mm). Change was compared between groups.
Baseline and 6 months

Samarbetspartners och utredare

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Sponsor

Ankara University

Utredare

  • Huvudutredare: Ayşe T Altuğ Demiralp, DDS, PhD, Professor, Ankara University Faculty of Dentistry Department of Orthodontics

Publikationer och användbara länkar

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Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

20 oktober 2025

Primärt slutförande (Faktisk)

28 augusti 2026

Avslutad studie (Faktisk)

28 augusti 2026

Studieregistreringsdatum

Först inskickad

25 september 2026

Först inskickad som uppfyllde QC-kriterierna

30 september 2026

Första postat (Faktisk)

1 oktober 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

1 oktober 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

30 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • 2025-755

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

IPD-planbeskrivning

There is currently no plan to share individual participant data with other researchers.

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