Correlative light and backscattered electron microscopy of bone--Part I: Specimen preparation methods.

Area of Science:

• Materials Science
• Microscopy Techniques
• Histology

Background:

• Preparing nondecalcified bone and tooth specimens for advanced imaging is crucial for understanding tissue structure.
• Correlative microscopy, combining light microscopy (LM) and scanning electron microscopy (SEM), offers comprehensive analysis but requires compatible sample preparation.
• Existing mounting methods can be time-consuming due to long curing periods.

Purpose of the Study:

• To develop an efficient method for preparing nondecalcified bone and tooth specimens.
• To enable correlative imaging of the same histologic section using both LM and backscattered electron microscopy in SEM (BSE-SEM).
• To reduce the time required for specimen slide preparation.

Main Methods:

• Bone blocks were embedded in a polymethylmethacrylate (PMMA) mixture.
• Specimens were mounted on glass slides using components of a light-cured dental adhesive system.
• The prepared slides were suitable for both LM and BSE-SEM imaging.

Main Results:

• The developed method successfully prepared nondecalcified bone and tooth specimens.
• The technique allowed for correlative studies using the same histologic section across different microscopy modes (LM and BSE-SEM).
• This slide preparation method significantly reduced preparation time compared to traditional methods.

Conclusions:

• A novel, time-efficient method for preparing nondecalcified bone and tooth specimens for correlative LM and BSE-SEM imaging has been established.
• This technique facilitates detailed analysis of histologic sections using multiple microscopy techniques.
• The use of a light-cured dental adhesive system streamlines the mounting process, saving valuable research time.