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RecruitingNCT06106321Updated Apr 26, 2024

Primary and Secondary Elevations of Maxillary Sinuses: a Prospective Clinical Study in the Posterior Maxillary Region

An interventional study of Transalveolar crest maxillary sinus floor lift and transalveolar crest parietal maxillary sinus floor secondary lift in Tooth Loss, sponsored by Nanfang Hospital, Southern Medical University. Recruiting at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-04-26.

Sponsored by Nanfang Hospital, Southern Medical University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Apr 2025, 1 year 7 months ago, but the record still lists the study as recruiting.
  • Started Apr 2024; still recruiting 2 years 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

About 40 people will participate in the study, which will be conducted at Southern Medical University Southern Hospital. All subjects need to sign an informed consent form before screening, and successful subjects can enter the study. Experimental and control subjects were treated according to the protocol. Treatment was held until the participant entered a follow-up period, or until any of the withdrawal criteria were met. According to conventional clinical practice, the study needs to evaluate the patient's subjective perception and soft and hard tissue changes at 3 months, 6 months, and 1 year after successful implant placement. The specific process is divided into: 1. Screening period: All subjects need to complete the relevant examinations of the screening period before enrollment, and screen according to the admission criteria. (1) Sign informed consent; (2) Record demographic data: date of birth, gender, initials; (3) Medical history and physical examination: collection includes understanding of any current or past diseases, medications, drug allergy history, surgical history, radiotherapy and chemotherapy history, ethnic background, smoking history, whether alcoholism, oral hygiene habits and oral examination, etc.; (4) Among them, oral examination includes the whole oral health before and after surgery and oral and maxillofacial CBCT imaging examination; 2. Treatment period: the control group underwent transalveolar crest parietal maxillary sinus floor lift immediately after implants; The experimental group underwent implant implantation after 6 months of transalveolar crest parietal maxillary sinus floor lift. 3. Follow-up period: The study needs to evaluate the subjective feelings and soft and hard tissue changes of patients at 3 months, 6 months and 1 year after implant placement.

02

Conditions studied

  • Tooth Loss

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03

In context

Tooth Loss

165 studies on the registry are indexed under Tooth Loss; 44 are open to participants now.

This study's planned enrollment of 40 is above the median of 30 across 120 interventional studies indexed under Tooth Loss.

Browse Tooth Loss studies →

Lead sponsor

Nanfang Hospital, Southern Medical University is the lead sponsor of 490 studies on the registry; 214 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
No

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

  1. Age≥ 18 years old
  2. If the posterior maxillary tooth is missing for ≥ 3 months, the patient requires implant restoration and the preoperative examination meets the indications for intramaxillary sinus lift
  3. Can be scanned with radiology equipment before and after surgery
  4. RBH ≤ 5mm, alveolar ridge width ≥5mm, each implant site is measured on CBCT
  5. During implant healing, there is no removable restoration at the implant site
  6. No history of acute or chronic sinusitis disease, no history of maxillary sinus disease, and no history of previous maxillary sinus surgery
  7. Be willing to sign and authorization form, and be able to return to the clinic on time

Exclusion criteria

Exclusion Criteria:

  1. Heavy smokers (10 cigarettes smoked ≥ day)
  2. Uncontrolled diabetes ( >7%), metabolic bone disease, disease or other systemic diseases, the body can hardly withstand implant surgery
  3. Mentally unable, pregnant or pregnant women
  4. Any history of or significant impact on dental implant placement, such as bisphosphonate drug use, chemotherapy or , head and neck radiotherapy, autoimmune disease, and hypertension
  5. Untreated periodontal disease, endodontics, or other oral diseases
  6. Bruxism patients
  7. Previous implant implant failure at the surgical site
  8. Anatomical changes in the maxillary sinus, such as maxillary sinus septum or mucosal swelling (defined as the mean thickness of the Schneider membrane at the base of the maxillary sinus > 2 mm)
Terms in these criteria, in plain language(5)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

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
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    Transalveolar crest parietal maxillary sinus floor secondary lift

    In order to achieve minimally invasive surgery (RBH≤5mm) in patients with severe deficiency of residual bone height in the posterior maxillary region and obtain reliable clinical research results, a secondary sinus floor lifting technique combining the advantages of maxillary sinus lift with the low risk of maxillary sinus lift is proposed.

    Procedure: transalveolar crest parietal maxillary sinus floor secondary lift

  • Active comparator
    Transalveolar crest parietal maxillary sinus floor lift

    Transalveolar crest parietal maxillary sinus floor lift (OSFE) requires a residual bone height of at least 5 mm and implant placement at the same time. Its advantages are simple operation, shorter surgical time, reduced trauma and reduced postoperative complications, and the concept of minimally invasive implant surgery is reflected in OSFE.

    Procedure: Transalveolar crest maxillary sinus floor lift

Interventions

  • ProcedureTransalveolar crest maxillary sinus floor lift

    Transalveolar crest maxillary sinus floor lift + bone grafting + implant implant is used

  • Proceduretransalveolar crest parietal maxillary sinus floor secondary lift

    Transalveolar crest parietal maxillary sinus floor secondary lift + bone grafting + implant implantation were used body

06

What researchers measure

Primary outcomes

  1. Neonatal bone mass in the sinus

    The sum of bone mass (ABH) in the apical region and the elevation height (IPL) of the maxillary sinus floor (IPL) was measured by CBCT 3, 6, and 12 months after implantation

    Time frame: 3, 6, 12 months after implantation

Secondary outcomes

  1. Remaining alveolar ridge height

    CBCT was used to measure the distance from the lowest coronal level of bone-implant contact to the apical level of bone-implant contact with sinus floor cortical bone

    Time frame: Preoperatively, 3, 6, 12 months after implantation

  2. Maxillary sinus floor elevation height

    3 months, 6 months, and 1 year after implantation, CBCT was used to measure the distance from the root tip of the implant to the cortical line of the sinus floor

    Time frame: 3, 6, 12 months after implantation

  3. Peri-implant marginal bone resorption

    CBCT was used to measure the difference between marginal bone level and marginal bone level baseline before surgery, 3 months, 6 months, and 1 year after implantation

    Time frame: Preoperatively, 3, 6, 12 months after implantation

07

Study locations

1 of 1 sites recruiting
  • NanFang Hospital of Sourthern Medical University
    Guangzhou, Guangdong, China
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 26, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06106321
Responsible party
Sponsor
First posted
Oct 30, 2023
Start date
Apr 7, 2024
Primary completion
Apr 2025 (estimated)
Completion
Dec 2025 (estimated)
Last update
Apr 26, 2024

Study contacts

Qi Liu, Ph.D
Contact
liuqi0721@smu.edu.cn
+86 020 62787153

Oversight

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

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