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Bone Mineral Density by Dual-Energy X-ray Absorptiometry (DXA) – Guided Bone Grafting Assessment

Published: August 9, 2026Updated: August 16, 2026

This test measures the density of your bones to assess bone health and help plan for procedures like guided bone grafting, which may be needed for dental implants or reconstructive surgery.

Quick summary

["A lower bone density may indicate risk for fractures or need for surgical support."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
87013-9
Short code
Guided Bone Bx
Synonyms
Guided Bone Bx
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
imaging-modality
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What This Test Measures

Bone mineral density (BMD) is measured using a specialized X-ray technique called dual-energy X-ray absorptiometry (DXA). This test evaluates the amount of mineral content in your bones, which helps determine bone strength and potential risks for conditions like osteoporosis. The guided portion likely refers to the use of imaging to assist in precise placement during related procedures.

Why It’s Done

Your healthcare provider may recommend this test if you’re planning dental implants, have a history of bone loss, or need evaluation for conditions affecting bone health. It helps ensure that any surgical intervention, such as guided bone grafting, is performed safely and effectively.

How It’s Performed

You’ll lie on a table while a small X-ray device scans your body, focusing on specific areas (often the jaw or spine). The scan takes just a few minutes and is painless. No special preparation is needed, though you may be asked to remove certain clothing or jewelry.

What the Results Mean

Results are compared to standard values for your age, sex, and body size. Lower density may signal weaker bones, while higher density suggests stronger bone structure. These findings help guide decisions about treatments or surgical planning.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Bone Mineral Density (DXA) with Guidance for Surgical Planning

Frequently asked questions

How often should I get this test?
The frequency depends on your health, medical history, and treatment plan. Your doctor will determine how often to repeat this test based on your individual needs, such as whether you’re at risk for bone loss or planning dental work.
What does a low bone density mean?
A low bone density may increase your risk of fractures or complications during surgery. Your provider may recommend additional treatments, like medications or lifestyle changes, to support bone health before or after procedures.
Can I eat or drink before this test?
No special diet or fasting is required. However, follow any specific instructions your healthcare provider gives you, such as avoiding certain medications or supplements, if applicable.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy