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NCT Number: NCT07041398

Horizontal Ridge Augmentation Using Sausage Technique: A Retrospective Study

This retrospective study investigates the outcomes of the sausage technique, a contemporary modification of guided bone regeneration (GBR), for the augmentation of severely horizontally deficient alveolar ridges (<4 mm width). The technique, originally introduced by Urban and colleagues, uses multiple fixation pins to enhance membrane stability and maintain graft volume through a tension dome effect.

In this study, a total of 23 patients underwent horizontal ridge augmentation using the sausage technique, with bone measurements assessed at 2, 4, and 6 mm apical to the crest using CBCT imaging at preoperative (T0), early postoperative (T1), and late postoperative (T2) stages. The study quantitatively analyzed both horizontal bone gain (T2-T0) and bone resorption (T1-T2) during the healing period.

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Key information

Conditions

Alveolar Bone Grafting Bone Gain Guided Bone Regeneration

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Kocaeli University Faculty of Dentistry

Kocaeli, Başiskele, 41040, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients with knife-edge alveolar ridges, classified as Class IV according to the Cawood and Howell classification, who underwent ridge augmentation using the sausage technique
  • Patients aged 18 or older with fully developed bone
  • Patients who had regular clinical and radiographic follow-up after the procedure, with a minimum follow-up period of six months

Exclusion criteria

  • Patients with systemic conditions (such as osteoporosis, cancer, immunosuppression, hyperparathyroidism, or hyperthyroidism) or a history of medications (including intravenous or oral bisphosphonates, immunosuppressants, or chemotherapy) that could interfere with bone healing
  • Patients with a history of radiotherapy to the head or neck region
  • Patients classified as ASA III or ASA IV
  • Patients who were active smokers at the time of surgery
  • Patients whose pre- or postoperative CBCT scans were of low image quality or affected by artefacts

Treatment and study plan

Primary outcomes

  1. Amount of horizontal bone gain postoperatively

    Time frame: Within1 week after the collection of patient data

  2. Amount of horizontal bone resorption postoperatively

    Time frame: Within 5 to 7 months postoperatively

  3. Amount of vertical bone resorption postoperatively

    Time frame: Within 5 to 7 months postoperatively

Sponsors and collaborators

Lead sponsor

Kocaeli University

Other

Registry information

Important dates

Study start
2024
Primary completion
2024
Study completion
2024
First posted
Jun 27, 2025
Registry last updated
Jun 27, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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