Ancient Egyptians Used Dental Filling, New Study Suggests

Archaeologists remove the cover of an ancient painted coffin
discovered at al-Asasif Necropolis in the Vally of Kings in Luxor,
Egypt October 19, 2019. REUTERS/Mohamed Abd El Ghany.
Archaeologists remove the cover of an ancient painted coffin discovered at al-Asasif Necropolis in the Vally of Kings in Luxor, Egypt October 19, 2019. REUTERS/Mohamed Abd El Ghany.
TT

Ancient Egyptians Used Dental Filling, New Study Suggests

Archaeologists remove the cover of an ancient painted coffin
discovered at al-Asasif Necropolis in the Vally of Kings in Luxor,
Egypt October 19, 2019. REUTERS/Mohamed Abd El Ghany.
Archaeologists remove the cover of an ancient painted coffin discovered at al-Asasif Necropolis in the Vally of Kings in Luxor, Egypt October 19, 2019. REUTERS/Mohamed Abd El Ghany.

A recent Greek study that examined an ancient Egyptian mummy from the Ptolemaic age unearthed in "old Panopolis" in the city of Akhmim, southern Egypt, has found that Ancient Egyptians used dental filling.

Archeologists examined the mummy (AIG. 3343) kept at Athens's National Archaeological Museum, and found a porous cavity in the teeth filled with protective materials, which suggests that Ancient Egyptians had used dental filling and were probably the first to use this protective measure.

The study was published in the American Association for Anatomy's the Anatomical Record Journal.

To examine the mummy, archeologists from the Mummy Research Project of the Hellenic Institute of Egyptology, the National Archaeological Museum, and the Athens Medical Center, used the computerized tomography (CT) technique, which provides a full description of teeth.

They were surprised to find low density materials (dental filling) between the first and the second molars in the lower jaw.

According to the archeologists, the unique structure and low density of the discovered material is significantly different from the embalming materials found in different parts of the mummy's skull. The dimensions of the filling were larger than the cavity, which suggests the material was deliberately placed there.

They also found that the material's structure was different from the teeth's shape, and that there were other cavities that are not filled with the material. This suggest that the filling was used as a sort of therapy and not as part of the embalming process.

Although the discovery of the filling was the key result of the study, archeologists managed to determine that the mummy's teeth were weak and tattered in several places. The problems ranged from a mild loss of enamel to a complete loss of tissues in the first molar of the upper right jaw.

The archeologists also found evidence on severe gum infection in many teeth, along with a huge bone loss in different spots.

The study didn't look at the reason behind this mummy's death, but the skull's characteristics suggested it belongs to an adult male who died in his twenties. The mummy didn't show significant degenerative changes in the spine and large joints.



Japan's Space Agency Halts Epsilon S Rocket Engine Test after Fire

Smoke and fire is seen during a combustion test of an engine for a new small Japanese rocket Epsilon S at Tanegashima Space Center, Kagoshima prefecture, southern Japan, Tuesday, Nov. 26, 2024. (Kyodo News via AP)
Smoke and fire is seen during a combustion test of an engine for a new small Japanese rocket Epsilon S at Tanegashima Space Center, Kagoshima prefecture, southern Japan, Tuesday, Nov. 26, 2024. (Kyodo News via AP)
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Japan's Space Agency Halts Epsilon S Rocket Engine Test after Fire

Smoke and fire is seen during a combustion test of an engine for a new small Japanese rocket Epsilon S at Tanegashima Space Center, Kagoshima prefecture, southern Japan, Tuesday, Nov. 26, 2024. (Kyodo News via AP)
Smoke and fire is seen during a combustion test of an engine for a new small Japanese rocket Epsilon S at Tanegashima Space Center, Kagoshima prefecture, southern Japan, Tuesday, Nov. 26, 2024. (Kyodo News via AP)

Japan's space agency aborted an engine test for the Epsilon S rocket on Tuesday following a fire at the test site, a failure that could push the rocket's debut launch beyond the March-end target and cause further delays in the national space program.
An explosion could be heard and a blaze could be seen shortly after the ground combustion test started at the Tanegashima Space Center in southwestern Japan, according to footage from public broadcaster NHK.
The Japan Aerospace Exploration Agency (JAXA) said the engine test encountered a "combustion abnormality" 49 seconds after the ignition. It said there was no indication of injury or damage to the outside facility, Reuters reported.
"JAXA will conduct a thorough investigation into the cause of the problem and consider countermeasures," Chief Cabinet Secretary Yoshimasa Hayashi said at a regular press briefing.
Hayashi, the top government spokesperson, said rocket development is "extremely important" to ensure the autonomy of Japan's space program.
JAXA partnered with the aerospace unit of heavy machinery maker IHI to develop Epsilon S, the next generation in the Epsilon solid-fuel small rocket series. Shares in IHI were down as much as 6% in Tokyo trade. An IHI Aerospace spokesperson said the company is investigating the cause.
Epsilon S's debut flight was slated by the end of the fiscal year through March 31 depending on the success of Tuesday's engine test.
The test was conducted after previous failures triggered months of investigation that have delayed space missions and satellite launch plans.
In July last year, an Epsilon S engine test failed due to thermal damage to its ignition systems. That followed a launch failure in 2022.
JAXA's larger flagship rocket H3, built by Mitsubishi Heavy Industries, failed at its first launch last year but has succeeded in three flights this year, launching Japanese satellites and winning orders including from French satellite operator Eutelsat.
The H3 and Epsilon S are central to JAXA's ambition to build cost-competitive rockets amid the rise of American commercial launch providers such as market leader SpaceX and small rocket maker Rocket Lab.
In the private sector, IHI-backed Space One is set to attempt the second launch of its Kairos small rocket on Dec. 14 after the first flight exploded in March. It aims to become the first Japanese business to put a satellite in orbit.